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Plug in the USB stick and launch Disk Utilities.The installer will remain in your Applications folder. As soon as it does, select File and Quit (or keyboard shortcut Command-Q) so it doesn’t install. When it’s finished, the installer will launch.Download macOS High Sierra from the App Store.Try free ✕ Create a bootable macOS installer And make sure you have a record of license codes for apps and passwords for websites. And move your images and documents into the cloud or to an external drive, just to be on the safe side.Īs well as backing up your Mac, you should also take screenshots of settings in any apps you’ve customized so that you can set them up again quickly later. Also, a cloned drive makes copying files back to your newly-updated system very easy.
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It’s also a good idea to create a bootable clone, so if anything goes wrong you can go back to where you started easily. It’s more powerful than Apple’s own Time Machine. Now, for the backup itself use Get Backup Pro. Then you can use Gemini to easily find duplicate files and folders on your hard drive, so you can delete them and save precious storage space. You could do it manually, but CleanMyMac only all it takes is a few clicks. You can always use CleanMyMac to cleanup macOS system junk, large and old files, and remove unwanted apps. Start with a system cleanupĭelete everything you don't need - large and old files and archives, useless apps, cache data and other junk, duplicate files - all these files silently eat up the disk space, duplicate images are especially hard to find out.
#Osx high sierra usb drive slow problem manual
It will save to hours of manual file cleanup and polish your system before the backup. An easy way to go about this is to get a Mac cleaning app like CleanMyMac. You might not want to backup the files you don’t need and system junk, so make sure to clean that up beforehand.
#Osx high sierra usb drive slow problem install
The process of performing a clean install involves wiping your Mac’s main drive clean so it’s essential that you back it up immediately before you start.
#Osx high sierra usb drive slow problem full version
With Setapp, you always have the latest full version of every app. You don't need to dig through Internet to search and and download each apps mentioned below, all of them available on Setapp.
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Once you have everything that's needed, let's begin. Don’t worry, this step-by-step guide will walk you through all you need to do.
#Osx high sierra usb drive slow problem how to
How to clean install macOS on a startup drive If you don’t know which one you have, go with the first option, startup drive.
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It’s a more lenient and less intrusive way because your Mac doesn’t get wiped clean, only your system. If you have another drive or volume other than your startup drive, use the second way which is clean installing on a non-startup drive. This way entails one important fact: all your files and data will be deleted during the process. If you only have one drive and it’s not partitioned and this is where you have all your files and your OS, your choice is to clean install on the startup drive.
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Your data remains but your software and file junk remains as well. It’s quick, easy and means we can be back up and running in no time, with all your apps and data ready to use. Normally when you install a new version of macOS, you just install it over the previous version. Get Setapp, a toolkit with fixes for all Mac problems