![]() There are times when users end up losing their data while upgrading to a new operating system. Sign-out or offload apps with too much data. ![]() Delete Safari History or any other browser data.Get rid of any file that is not important.Uninstall all the old apps that you no longer need.Simply follow these suggestions to clean up your system quickly: You mustn't have a lot of unwanted space on your Mac before upgrade to macOS Catalina. Here are all the devices that would support the new macOS Catalina: Ideally, if your system runs on macOS Mojave (except 2010-12 Mac Pros), then it would be compatible with macOS 10.15 too. Check that your Mac is compatible with macOS Catalinaįirst things first – make sure that your Mac would support the new OS or not.For instance, you should check if your Mac is compatible with macOS Catalina or it has enough free space on it or not. Part 1: Preparations for Installing macOS Catalina 10.15īefore you start the installation process, there are certain things that you need to take care of. Part 4: How to Recover Lost Data after Updating to macOS Catalina.Part 3: How to Clean Install macOS Catalina 10.15.Part 2: How to Upgrade to macOS Catalina 10.15.Part 1: Preparations for Installing macOS Catalina 10.15.This should install Catalina, but it may only install High Sierra. Select Install OS X and click on the Continue button.Quit Disk Utility and return to the Utility Menu.Click on the Apply button, then click on the Done button when it activates.Set the Format type to APFS (SSDs, only if installing Mojave or Catalina ) or Mac OS Extended, (Journaled.).Click on the Erase button in Disk Utility's toolbar.When Disk Utility loads select the target drive (out-dented entry w/type and size) from the side list.Select Disk Utility and click on the Continue button.The Utility Menu will appear in from 5-20 minutes.Immediately, at or before the chime, hold down the (Command-Option-R) keys until a globe appears. If possible back up your files before proceeding. Internet/Network Recovery of El Capitan or Later on a Clean Disk You could also make a backup of your files then do the following: It did not work even after you erased the drive and installed High Sierra? Are you sure the drive is OK? Perhaps it would be a good idea to run the Apple Hardware Test: Apple Hardware Test. Select Install OS X and click on the Continue button. Quit Disk Utility and return to the Utility Menu.ħ. Click on the Apply button, then wait for the Done button to activate and click on it.Ħ. Set the Format type to APFS (for SSDs only) or Mac OS Extended (Journaled.)ĥ. Click on the Erase button in Disk Utility's toolbar. When Disk Utility loads select the drive (out-dented entry) from the Device list.ģ. Select Disk Utility from the Utility Menu and click on the Continue button.Ģ. Immediately after the chime hold down the Command and R keys until the Apple logo appears. Erase and Install OS X Restart the computer.When the Utility Menu appears select Install OS X then click on the Continue button. Reinstall OS X by booting from the Recovery HD using the Command and R keys.If your problems cease, then consider switching to the new account and transferring your files to it - Transferring files from one User Account to another. Upon completion log out of your current account then log into the new account. On the left under Current User click on the Add button under Login Options. Click on the lock icon and enter your Admin password when prompted. Create a New User Account Open Users & Groups preferences.Repair permissions on the Home folder: Resolve issues caused by changing the permissions of items in your home folder.Restart the computer from the Apple Menu. Quit Disk Utility and return to the Utility Menu. Click on the First Aid button in the toolbar. Select the indented (usually, Macintosh HD) volume entry from the side list. Choose Disk Utility and click on the Continue button. Immediately after the chime hold down the Command and R keys until the Utility Menu appears. Repair the disk by booting from the Recovery HD.Use safe mode to isolate issues with your Mac and Playing Safe - what does Safe mode do? Test in safe mode to see if the problem persists, then restart normally.Reset your Startup Disk and Sound preferences, if needed, after resetting the PRAM.Reset the System Management Controller (SMC).Disconnect all third-party peripherals.Shutdown the computer, wait 30 seconds, restart the computer.You should try each, one at a time, then test to see if the problem is fixed before going on to the next.īe sure to backup your files before proceeding if possible. The following is tedious but may help.Ī Troubleshooting Procedure that may Fix Problems with macOS El Capitan or Later At this point I would guess there is some other weird problem at work.
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