• 1. Mail is not syncing from iMac to iPad and iPhone.
    2. Photos won’t stay checked in iCloud. I get this message:” iCloud Photos is only available on macOS Standard, macOS Extended and APFS formatted volumes.” When I restart the computer, Photos is checked again in iCloud but it doesn’t last.

  • My computer was running slow. I have a 2012 MacBook Pro. I took it in to the Genius Bar and we wiped it clean, installed Mojave and restored via my external hard drive. When I go to edit a picture, the whole Photos app crashes when I click done. I changed the hard drive, went back to the genius bar where they reinstalled Mojave and restored my stuff again from my external hard drive. Photos would not load completely – it would stop at 92% then at 99%. So we quit and restored my photos from iCloud. I’m still having the same problem of the Photos app crashing after clicking done in Editing. Anyone else having this issue, and how to fix it?

  • I have 2015 MacBook Pro with 1TB SSD and 16 GB ram. I copied all my files to a WD passport external drive, then did a clean install of Mojave. After install I connected the WD drive, went into spotlight and excluded the WD drive and the sub directory to which I was going to transfer back the files form the WD drive. It copies about 600GB of the 800GBs when I get a black screen with the spinning ball. I shut down the Mac, restart it, delete the file on the Mac and run the disk utility which says everything is fine with the SSD. Can anyone help me fix this problem. Thanks

  • Just did clean install of Mojave’s on 2015 MacBook Pro 1TB SSD, maxed out ram. When I attempt to copy over files from WD passport external drive system either hangs with rotating ball or I get flashing folder icon on black background. I have to shut down and delete whatever files (partially) copies over to regain control. I’ve run the disk utility and it finds no errors. Any ideas? Thanks

  • Brilliant , i tried many ‘solutions’ to connecting my NON apple bluetooth mouse to Mojave…. your answer did the trick. remove the’ com.apple.Bluetooth.plist’, worked perfectly. Thanks so much.

  • During file copy or move, it the destination file already exists, then it used to give the option to save a “copy” with the original or skip. On Mojave only skip option appears. Can this mistake be fixed?

  • I clicked at a (green)custom tag and now my MacBook is ruined. everything is lagging, every app is freezing, open a folder or the preferences panel have a 30-40 sec delay. please I need help I can’t even save my files..

  • Since upgrading to Mojave, I can only send emails to people in my Contacts (Address Book). Even if I type the complete email address of a new recipient, the To: field will not complete. Alternative suggestions are made from my contacts instead. If I go to my contacts and add the new recipient, only then can I send an email.
    Is there a fix for this?

  • ever since upgrading on my iMac Pro, when I log in, the screen goes black. then a gray screen appears and the computer asks me to select a start up disc. after selecting, the screen goes black and takes me to the log in page. but after putting in my
    password, the computer takes me yet again to the gray screen and asks for the select disk option. way to go Apple, you just ruined my very expensive computer!

  • Since upgrading to Mojave my emails no longer work, keychain didn’t work, my USB isn’t recognised now when I plug it in the back of my IMac. Loads of documents are now missing. I wished I’d never downloaded it. Spent 1hr 40 mins with Telstra thinking it was them re emails but 2 hrs on char with apple turned out it is the Mojave up date :(

  • Just got a 27″ Imac yet im experiencing the same damn garbage with the frozen start up screen. I suspect its PRam related but the start up screen stays the same as in not seeing the start up screen. As a long time mac user since the quadra 604 since the early 1990s. I expect my desktop to work with out issue as I take it out of the box. To paraphrase apple it should work as soon as you take it out of the box. This is simply not the case. This is really not cool Apple. I expect much better product qulity then this CRAPPLE… Taking it back to the shop and I will make their lives a living hell if they dont fix it. I have very little patience for this garbage.

  • I can no longer connect via wifi from my MacBook Pro to our desktop. No idea what has changed


  • I am so glad that I could not enable Mohave. After reading the posts, I know I will never “upgrade,” even though the invitation shows up every day and blocks content I want to see. How can you market a mess like this? Do you even care that your “upgrade” causes massive problems for users? Why do you computer geeks always want to add new features that screw up the works? Because you are having fun while users are losing their minds while they try to follow your fixes?

    • I think that’s how their computer programming “engineers” justify their existence. Not to mention the top executives at Apple who must explain their presence in the executive suites and boardrooms. “Let’s keep making new stuff, whether there’s a need for it or not. The more dramatic the changes, the better—so we can be seen to be still innovating.”

      Of course Apple’s reliance on SSD powered computers with limited storage provides a slot for these novelties. As well as a need for Apple’s otherwise anemic cloud services. It’s all of a piece. Everyone’s moving to the cloud, despite it’s limitations, complexities and costs. In this Apple is a follower, except for Apple Pay, the single industry leader among Apple products and services.

      Color me cynical.

  • I just recently updated to Mojave 10.14.3 and have not been able to remove items from my Favorites list.

  • I have a MacBook 13″ 2017 w/ Touch Bar. After updating to newest MoJave all it does is freeze, regardless of what I do. I just took it to Apple today. All they did was restart the computer fresh and it’s still happening. I read to disable Spotlight, and I think I did it correctly through Terminal. So let’s hope that helps.

  • Hello, I recently purchased a super drive. While trying to watch a dvd borrowed from the library, I got the message “ Not Permitted ” and was not able to view the movie. I did view it, however, on my older computer. Trying to figure out a solution to this. Thanks.

    • Hello, I recently purchased a super drive. While trying to watch a dvd borrowed from the library, I got the message “ Not Permitted ” and was not able to view the movie. I did view it, however, on my older computer. Trying to figure out a solution to this. Thanks.

    • What SuperDrive did you purchase? Not all SuperDrives are created equal. And Mojave has made that problem worse. Otherworld warrantees their drives. Give them a call and talk to their technical support department. They may have some insight on which drives work with Mojave. And return your non-functional drive for a refund; though the problem is probably not the manufacturer’s fault, you shouldn’t pay for a drive that doesn’t work. Or use the drive with a different computer.

    • Hi Judy, Someone from our Customer Service team will reach out to you to help you out with this. Thanks.

  • Search function in Finder is not returning anything…very frustrating with nearly 20 TB of external hard drive data.

  • Canon Powershot SX170 IS not compatible

  • All of a sudden, videos don’t play in iPhoto (new or old videos).

  • Since Mojave I cannot format cells in Excel, i.e. number format does not work anymore!

  • Since I updated to 10.14.1 Mojave, there is an issue with Safari.connecting to websites. The following message appears on the blank web page:
    “Safari cannot open this page because the server cannot be found, or because
    Safari can’t connect to the server”

  • I upgraded to Mojave from my 2012 mac. it had Sierra and skipped one version to Mojave.

    (did not know it was doing this just hit install)

    My HDD is no longer working, the computer still works fine on my second SSD but the primary HDD with all my personal documents is not reading properly or booting up.

    “Genius” bar said the HDD files were compressed during the install, during the reboot it finished the install in the SSD leaving the HDD mid-process.

    any advice on how I can recover this?

    • Use your Time Machine backup to revert your System. You’ve been using Time Machine, right? No? How about a recent clone? Not one of those either? If you upgraded without a backup, I have little sympathy for you. Even Apple strongly suggests backing up your system before an upgrade. If you’ve ignored all the advice to do so, well, you deserve the pain you’ve encountered. I know this sounds harsh, but you are the author of your own disaster.

      The problem with Mojave is that it upgrades the hard drive to APSF, even it it’s not an SSD. High Sierra upgraded only SSDs. Mojave is not so discriminating. And HDDs don’t run well in APSF format. You cannot reformat an APSF volume from a non-Mohave system. If you have Mojave on an SSD, you could reformat you HDD from there, but this would erase your data. If you HDD will mount when booted from the SSD, you should be able to copy your data off the HDD. If not, you’re SOL.

  • SuperDrive does not appear on desktop

  • Since upgrading to Mojave, the file sync indicators for all of the cloud file services (such as Dropbox, Box, Creative Cloud, Google Drive, OneDrive) don’t display.

    I’ve checked the extensions are active and you can still click on a file to get things like links or to view online.

    Naturally the indicators still work for iCloud, just nobody else.

  • Mojave is blocking my ability to write to my back up hard disk. This cannot be fixed with disk utility and so far Apple consultants are clueless. There is a patch available online. Not sure if it wise to use it. Oh and a reminder, Apple WILL delete all your itunes files if you quit Apple Music

  • Hi, before I installed this horrid Mojave, I could stop my MAC sleeping. But now no matter what I try I cannot get my Mac to stay awake. Every time I close the lid it sleeps… Please help…
    Thank you

  • Help! I downloaded videos I shot on my iphone via my Macbook using the image capture app on the new OS Mojave platform. I copied the clips onto an external drive to use on my iMac that is currently on the Os Sierra platform, but I’m at a loss as the clips will not play on my iMac. I tried importing into my Final Cut Pro X. It doesn’t recognize it. However, when I take my external drive and plug it into my OS Mojave macbook, the clips play. Help. I tried updating my QuickTime program on iMac. Nothing helps. Currently just using VLC to convert clips. Any suggestions?

    • If your iPhone is up-to-date, it records video in a different format than it used to. Mojave (and High Sierra) can handle that new format. Sierra cannot. I forget what the initials for the new format are. There is also a new still format on the iPhone that, likewise, cannot be viewed on Sierra. These formats are supposed to be backwards compatible but, as you can see, they are not reliably so. If you want to see the videos on an older Mac, you will need to convert them in Mojave first. Sadly, FinalCut Pro is behind the curve, as is typical for Apple. The left hand doesn’t know what the right hand is doing. If you connect your Mojave system and your Sierra system on a wired network, moving the files from Mojave to Sierra over the network may do the trick. But I’m not sure of this. Hopefully someone with more expertise in these matters will respond to you enquirery.

  • in mojave- I can now only move or copy a single file at a time, rather than a set of files. They all move together, but when the copy (or move) occurs, all but one file jumps back to their original location. Anyone have any ideas about this issue?

  • with Mojave I can no longer pull images from my photos into Illustrator or Photoshop via the programs. when I go into the Photos folder no photos ever load up

  • I am most interested in editing my photos and cannot crop my wild life photos as I would like to. I am new at using the download Mohave, so possibly there is a way to do this that I cannot accomplish yet.

    Thank you for your attention to this problem. Joan.

  • Why did Apple upgrade to Mohave OS when it does not support existing Microsoft Office software and there is no sign of an upgrade from MS to work with the MOJAVE OS ? Same issue for Adobe….what are you people thinking ? As a user, and a loyal Apple customer, both Apple and MS have left us in a lurch when you should have been working together. Where can I go to get something that works ? Thank you

    • You can buy Office 2016 as a standalone suite, or subscribe to Office 365. Or you can use any of several Office replacements, like LibreOffice, which is a free open source suite of apps that will open and create Office compatible documents. Or you can use Pages, which will also open and save Word compatible documents. There’s also Numbers and Keynote. There’s no shortage of choices.

    • I think the question is WHY ARE ADOBE NOT WORKING FEVERISHLY TO KEEP UP WITH APPLE’S UPDATES?? They know we use these machines and that the OS has to update constantly, so they need someone with their A$$ working in Apple headquarters that fixes what Apple breaks when they “upgrade.” I’m so sick of Adobe and their BS!!

  • Hello
    Please accept feedback – the HUGE icons are simply horrible; they give the impression that Apple is being so condescending as to try to make any user feel as if they are back in grade 2. It’s a mistake and should be changed.

  • After installing mac OS Mojave 10.14.2 on my iMac, I cannot use my Avery Name Badges program (Avery 74520), and also I have difficulty working on my photographs in my Photoshop Elements 12 program.

  • Since installing Mojave 10.14.2 mu number pad no longer works.
    I tried the shift clear option as well as tried the accessiblity fix. nothing worked

  • I was wondering if not showing the password typing indicator in 10.14.2 is a flaw or a new feature.

    Most of my third party installed applications still display the “dots” or the symbol that changes to a “dot” but it appears that the macOS upgrade is now limiting that. If that is the case, is there a terminal command that I can use to get the “symbol to dot” display back?

    MacBook Pro Retina Display (Early 2013) 16GB RAM (Disabled pull cord to start – have converted to using the button on keyboard) Still chugs along tho. ;)

  • Had none of the above problems when I installed Mojave 10.14.2 but when I went to burn a CD and later a DVD the disk did not show up on the desk top so I could load what I wanted to burn. Have found no solution as yet.

    • Finder – Settings ( cmd + , ) – main (not sure what this tab is called, it is the first, I am using another language).
      (x) CDs, DVDs and iPods
      should be selected, if it is selected, I cannot say what is the reason.
      Cannot test, have no internal burner and have not burned something for years with my external burner.

  • Brilliant article! We’ll immediately look for more by you and continue to follow your work!! EXTRAORDINARILY HELPFUL!! Thank you so much!! Please consider a check box below that says “Notify me of other articles by this/these author(s)!”
    I would love to follow someone as smart and helpful as this! Thanks again!

  • I photo will not update,, says already purchased??/

    • This may be a misunderstanding, do you mean iPhoto?
      That is an older program, not supported anymore.
      Just checked, I still have it in my applications folder, it is from 2015.
      When I try to open it, there is this message “Your photo library has been migrated to Photos.”.

      You should have a newer app in the Applications folder, this is named
      with a file date of 2018 and the date where it was installed (for me that is December 06th.). If you have never used it, it may take a while to convert / import your pictures. It is now a database-structure, which is not that practical, imho, if you use more than one program for pictures.

  • Since upgrading to Mojave I can no longer connect to my desktop running Mt Lion. From my laptop I can see it on the network, and it says “connecting as” but I get a “trouble connecting” error every time. No login window opens.

  • Air now practically unusable. Memory fills up and slows the machine to a halt within twenty minutes of start up. The only cure is a reboot. I have a book to finish writing in the next two months and I am furious.

    • Why did you update the OS in the middle of an important project? Pardon me for saying so but that was foolish. Doubly so if you didn’t make a backup first. The one you should be furious at is yourself. Mojave has been all but trouble free for most users.

      That said, you didn’t say what model Mac you are using or, more important, how much RAM (memory) you have installed. Mojave will not run heavy duty apps on a machine with less than 16GB of RAM. Of course, most word processors are not that memory intensive. Check Activity Monitor to see what apps or processes are using an unusual about of resources. A web browser with lots of windows or tabs open can be a memory hog. A lot of files on the Desktop can also use a lot of memory. If you’ve got lots of RAM installed you can get away with this sort of thing, but with less than 16GB this will be problematic.

      If you want to be angry, that short rant may make you feel better. If you are looking for help, you’ll have to give us more information.

  • Hi, there. I recently purchased an imac with mohave OS 10.14.2. In most of my Word files, the inserted pictures are distorted. Through experimentation, I found that some will return to normal if I right click on the picture, go to format picture, then click the picture tab, and finally turn the color from greyscale (which I had set on purpose) to automatic. Yet, this does not always work. The Word on my mac is MS Word 2008 for mac, version 12.3.6. Please help. Thanks.

    • Word 2008 is way out of date. You’ll need a minimum of Word 2011, and even that is not officially supported by Microsoft on Mojave. If you don’t want to subscribe to Office 365 you can buy a standalone version of Office 2016 for the usual price of $150. Given that they’ve been selling the student and teacher edition of Office for the same price for 20 years, that’s actually a significant discount when you consider inflation.

  • I’ve found that I can no longer change fonts or font size, in my Firefox preferences, since I updated to Mojave. No matter what I do, the font stays whatever default font and font size, Mojave uses.

    I’m not sure if this is a new thing, as I just upgraded to a new MacBook, after my 2008 MacBook croaked.

  • I’ve found that I can no longer change fonts or font size, in my Firefox preferences, since I updated to Mojave. No matter what I do, the font stays whatever default font and font size, Mojave uses.

  • Does anyone have a suggestion what I can do to be able to password protect a word document with Mojave OS in the background? My Word for Mac software (version 16.16.5, the latest) is fully updated but since installing Mojave I am unable to password protect the documents. I could do so before installing Mojave.

    • Open the program Disk Utility, select File -> New Image -> Blank Image. Select your choice of encryption and size. This creates an encrypted folder (essentially) inside which you can safely put documents. When you’re done editing your document for the moment, close it and “eject” the disk to prevent access to any files until someone opens it and enters the password again. (You can allow keychain to remember the password for you.)

  • Mojave RUINED my late 2013 iMac. It is SO SLOW it is barely even functional… actually, it’s NOT functional. Of course, none of the glowing reviews I have read mentioned that… because they are all on new computers probably. I regret ever installing it. All this for Dark Mode????? What a stupid upgrade. I think this is a ploy to get those of us with computers 5 years or older to get a new Mac. Disgusted with Apple right now.

    • These rants are pointless, you could have beta testet Mojave, and you could try to investigate what it is that slows your computer down.
      Then there are some simple upgrades, if they are possible for your computer, more RAM or switching a harddisk for an SSD. My Mac mini from late 2012 runs quite fast with a new SSD instead of the old HD.

      Things to look out for which could slow things down is Spotlight indexing new (may take days) or failing, old software, kernel drivers etc. Activity Monitor will help in that, and sometimes Konsole, although that is now one of my main gripes, that Konsole is nearly useless now.

    • Have the same complaint. 95% of what I do is ppt or microsoft word…. cannot even open a new word file right now, and half the functionality of ppt is missing. This is great news for finals week. So pissed off right now.

    • I repeat this in the hope that some people will learn the lesson. You absolutely positively must back up your system before upgrading any OS. This is SOP. If you don’t you are in for untold grief, frustration and disappointment. And it’s not just me saying this. In the instructions for upgrading to Mojave Apple says the same thing. If you ignore this advice, well, you get what you pay for.

      I take it that you have an iMac with a standard hard drive. As far as I know Mojave hasn’t been cleared for use on Fusion drives, like the one I have in my 2013 17″ iMac, and I’m in no mood to test it. The Mojave installer reformats any SSD or hard drive to the APFS format, without asking permission. I’ve tested this on an external HDD and it is indeed slow as snot. On an external SSD, however, it runs lightning fast.

      One solution, if you don’t have a backup of your old system, is to clone your Mojave system to an external HFS+ hard drive (the one you should have been using for backups) and reformat your internal drive to HFS+ and then restore your system from the clone. I’ve done this with external drive partitions. Earlier versions of Disk Utility on the Mac OS, however, cannot handle APSF volumes, so you will have to reformat the drive from a Mojave system—using Disk Utility. Which you will have, of course, if you clone your Mojave system as I suggest.

      I use CarbonCopy Cloner for this but SuperDuper! will also do the job. The advantage of CCC is that it will also create a compatible Recovery volume on your clone and when you restore your internal drive. Of course, it will ask your permission before doing so. You should grant that permission. The Recovery partition was one of Apple’s best ideas ever. I can’t remember at what point they developed it; it may have been as far back as Lion.

      All that said, even on an HFS+ drive Mojave is no speed demon. How it will perform on a Fusion Drive, if it ever gets there, I shudder to think. The Fusion Drive on my iMac is 120 GB. But the Fusion Drive on newer iMacs is much smaller so there could be many issues there.

      After considerable experimentation, if you have a desktop Mac, an external SSD is the way to go, unless, of course, you bought an iMac or Mac mini with an SSD. Then you’re golden.

  • Updated to Mojave now messenger and mail apps both not working. HELP

  • They removed all the contents of my hard drive to iCloud without explaining they were doing it. I had to contact Apple and get help to put it back where it belonged. There is no information on Mojave telling you they are going to do that!!

    • The information is in the installer, but it’s cryptic and you probably skated by it without noticing. I think this should be better explained in the installer, at least, and, preferably be an opt in rather than an opt out choice. As well, I think the issue should be covered more completely on tech sites like this one.

      Apple’s reason for doing this so obliquely, of course, is to sell you more space in iCloud. In my opinion they go about this business in an underhanded way that might even be worth a lawsuit or two.

      Naturally they will say their motive is to save you space on your SSD, whether you need it or not. If you need it, you should still be informed about the choice, something Apple fails to do adequately. It’s not even among the top features for Mojave listed on their main product page. You have to dig into their web site to find it. Fail, big time.

      Apple’s cloud is more secure than average, but as this case makes clear they don’t do cloud services well, and should not be relied upon for more than the basics.

  • I think it is YOUR (MAC’s) responsibility to tell people what your new “updates” are going to break. My less than one year old iPhone X has had 5 factory resets since updating, first from losing its cellular capabilities, meaning no phone calls or texts from my phone (kind of the most important part of a PHONE.) And then 4 more, from the latest update I did 2 days ago (a minor “bug fix update”, when the first 3 resets froze during the factory reset. Meanwhile my 3 year “old” top of the line MacBook Pro (top of the line at the time.) Has been randomly deleting documents, which will then come back 30 minutes to 2 hours later, and iMessenger deleted all of my text threads, for 48 hours until they showed back up randomly. As of today Microsoft word won’t open at all, maybe that’s their problem, but YOU should have put that as a warning considering the Mac version of word is horrible, so EVERYONE uses Microsoft word.

    I do appreciate the warning that your next update will break some of my old computer games (and much more) that I occasionally play for their nostalgia. So, I guess I’m not accepting updates AT ALL anymore, considering a minor “bug fix” update caused FOUR factory resets on my iPhone X.

    You need to warn people what your updates are going to break BEFORE the update, at the BEGINNING of the update information, especially such important things as Microsoft word (which is fully updated already fwiw.) I know you can’t catch everything, but you need to start your updates with messages about what you know will break, and warn about things that may be issues, then I can choose whether the update is worth it or not. (or not since my iPhone updated after I had turned off auto update, and said NO, do not ask again, when asked if I wanted to update.) 2 days later the phone decided it knew better and updated itself despite me fully rejecting it.

    (I’m in no way blaming whoever reads this, but maybe pass some of my suggestions along to the people who make updates, or is it now policy that we have to buy a new phone and laptop yearly? I’ve never had anything but Macs, and PCs have their own problems, but are also cheaper and more powerful, so why am I still getting ANYTHING made by Mac?) Final complaint, maybe make your power/connecting cords thicker/stronger, so they don’t just break constantly, that includes your headphones, which I’ve replaced multiple times (thankfully still under warranty)? My last laptop died 3 months after purchase because of a broken motherboard, and while it was a free fix, it meant 3 weeks without a laptop, (largely because your next 2 motherboard also broke before they even made it back to me.) So yeah, I guess this is my fault for assuming an “update” would make things better, I can’t find a single improvement from Mojave that matters at all to me, even if it didn’t cause things to start breaking. After 30 years of being 100% Mac, I think it’s time to say goodbye. /rant

    • Maybe the user shares some responsibility for checking before they install an upgrade. Upgrading blindly is foolish, to put it politely. As for Apple informing you what will break, they have no way of knowing in most cases. They don’t know what’s on your computer. You do. If you have any concerns, it behooves you to install the upgrade on a clone of your system to see for yourself what it will break.

      There are some things Apple does control, like how well or poorly they inform people about the Desktop and Documents feature that moves your data into the cloud with little notice. That is something they could control; they just chose not to.

  • Well, I got Office 2011 activated. It turns out I already had the right code, but there was a single digit typo in it so it wouldn’t work. Ugh. Those horribly long Microsoft codes. Demon inspired, I’m sure. Anyway, working in Mojave on my external SSD, the first time I launch Word, it is a bit slow, though faster than on my iMac Fusion Drive. After the first time, however, it launches all but instantaneously. OS X’s technique of holding launch elements from previously started apps in VM works really well on an SSD. This goes for all the other Office 2011 apps as well. I haven’t tested them thoroughly, but they seem to work OK at first blush. Time will tell if this appraisal holds up. In fact I may never know since I don’t use Word much any more. But there’s a security blanket affect knowing it will run in Mojave. I’ve used word since version 5. The next macOS upgrade will, sadly, be incompatible with 32 bit apps. Then I’ll have to decide—assuming I upgrade, which is not certain by any means—whether I really need Office or not. Other apps, as well, start up quickly, just as we’ve always hoped they would for the last twenty years or so. ;-)

    I thought of another reason Mojave may be running slow on some Mac laptops: They might not have enough RAM to run the OS with some memory hungry apps. Older MacBook airs, in particular, were short on RAM out of the box. Though they may be rated to run Mojave, if the memory has not been upgraded to at least 16GB, this could be problematic. My iMac has 24GB.

    Check with Otherworld to see if using Mojave is worth the cost of a memory upgrade. Or it may be time to get a newer Mac (Otherworld has lots of them). Their customer support should be able to tell you if they work with Mojave. Given enough memory they should. If not, a new Mac may be called for. Apple has a variety of almost new Macs in their refurb store for a modest reduction in the original price.

    I made a mistake in my previous post regarding macOS Mojave versions. The latest is 10.14.2, not 10.14.4. So if you have not yet upgraded, use the Combo update: https://support.apple.com/kb/DL1987?viewlocale=en_US&locale=en_US. It may fix some of the problems people are having with Mojave, if they upgraded without doing sufficient system repair. It will work as well if you had one hiccough or another with the upgrade.

    Alternatively, if you are having significant trouble with Mojave, reverting to your previous OS via a Time Machine backup or clone, checking your system thoroughly and then upgrading to Mojave again may solve your problems. If you remove all copies of the Mojave installer app from your system (Install macOS Mojave.app), you will be able to download the 10.14.2 version directly, escaping the need to update it again. Mac OS upgrades are supposed to check out a drive beforehand (since permissions repair has been removed from Disk Utility); obviously it doesn’t do an adequate job, judging by all the problems we’re seeing.

    In regard to iCloud issues, you should check to see what iCloud services you have enabled. When you install Mojave it will offer to store your Desktop and Documents folder in iCloud. This could take up considerable bandwidth and may be the cause of system slowdowns at first. If you don’t absolutely need these services, decline to use them. If you do need them, then give your system some time to upload all the files to the cloud. After the original upload, it will only need to sync files from time to time as you change or add to them. For people with a small SSD in their Mac, this could be a valuable feature. But it’s bound to be a bandwidth hog at first. I have the luxury of using an iMac with a 1TB Fusion Drive so I don’t need it. And I’m using a 1TB external SSD so I don’t need it here, either. For those stuck with a small internal SSD, using a larger external SSD might be a workaround, especially as you laptop probably has a USB-C port that can run an external drive at high speed. If you don’t want to install a system and boot from it, you can at least offload your data to it; Photos and iTunes libraries work well from an external drive and OS X has been able to do this for a long time.

    If you inadvertently turned this service on, and don’t need it, you can get an explanation of how it works at https://support.apple.com/en-us/HT206985.

    “Turn on (off) Desktop and Documents.
    Turn on (off) Desktop and Documents on every Mac that you want (don’t want) to use with iCloud Drive.
    1. From your Mac, go to Apple menu > System Preferences > iCloud.
    2. Make sure that iCloud Drive is turned on.
    3. Next to iCloud Drive, click Options.
    Choose (deselect) Desktop & Documents Folders.
    4. Click Done.

    There are other iCloud Drive services that you may want to use to make documents from other apps available on other devices. Some, like iMovie, can use up a lot of space. For instance, I have TypeIt4Me enabled so that I can get my shortcuts on other Macs. Though I’ve got the shortcut library downloaded in Mojave, I haven’t yet figured out how to make TypeIt4Me work. Another project on my list. In iCloud you can also turn on iCloud Photo Library, which can take up a lot of bandwidth, not to mention lots of storage on iCloud Drive. Apple would love you to do this because you will soon need to pay for additional storage.

    You can pay a lot for an external SSD. I found a reasonably priced Samsung SSD on Amazon; I also found an inexpensive USB3 drive case to install it in. Drive and case cost me less than $150. YMMV.

    Again I apologize for a long post. But this forum is for solving problems as well as describing them. I hope this helps some folks.