WebJul 17, 2024 · In Disk Utility, select “Macintosh HD” (or the name of the disk to erase and clean install Catalina onto), then click the “Erase” button. Choose “Macintosh HD” as the name, then go to “Format” and select APFS, then choose “Erase” – WARNING: THIS ERASES ALL DATA ON THE MAC. Quit Disk Utility when finished formatting the disk. WebStep 3: To check whether your Mac has booted into Safe Mode, click on the Apple logo on the top left. May 29, 2024 Clean installing or restoring a Mac offline with USB pen drive. As said earlier, you could use the macOS USB installer to …
How to install macOS from a USB TechRadar
WebUsing a Mac with at least OS X 10.6.8 installed, access the Mac App Store and download the Lion (10.7) or Mountain Lion (10.8) app installer. Insert the USB drive into the Mac and launch Disk Utility. Click on the USB drive from the left … WebOct 31, 2016 · 1. Restart your Mac, or power it on, while holding down the Command + R key combination. 2. Release the Command + R key combination once you see the Apple logo on display. In a few short... toct-9300
How To Create A Bootable USB macOS Installer Macworld
WebNov 12, 2024 · Jump to: Step 1: Back up your Mac. Step 3: Erase your hard drive. Downloading and installing a new OS gives you the opportunity to do some major house cleaning if you so desire. If you feel like you'd like a fresh start with macOS Big Sur, you can always opt to do a clean install: Just follow the steps below, even if you've already … WebNov 24, 2024 · Select your USB drive from the list of internal drives in the lefthand column. Click the text field next to “Name,” then type “Untitled” as the new drive name. Click the popup menu next to “Format” and set the drive format to “Mac OS Extended”. Click “Erase” to wipe the drive clean using the above parameters. WebNov 17, 2024 · Use Terminal to create the bootable installer. Plug in the USB flash drive or other volume that you're using for the bootable installer. Open Terminal, which is in the Utilities folder of your Applications folder. Type or paste one of the commands below into Terminal, then press Return to enter the command. toct 9055