This is the same program you use to erase, repair, or subdivide (partition) a hard drive. Once you've opened Disk Utility, click the name of the disk (in the left-side list), click the Erase tab, and then click the Erase button.
☞ Open LaunchPad. Click Utilities, then Keychain Access in the icon grid. Use the search box in the toolbar of the Keychain Access window to find and delete all items with "iMessage" or "com. apple.
To factory reset your m1 Macbook Air, shut down your Mac and press the power button to turn on your MacBook, when you see the Apple logo, press and hold the power button and wait till the options appear, and then click on it and erase your disk in the disk utility, after erasing, reinstall Mac Os big surMac Os big surmacOS Big Sur 11.4 adds Apple Podcasts subscriptions and channels and includes important bug fixes. This release also fixes the following issues: Bookmarks in Safari may get reordered or moved into a folder that can appear hidden. Certain websites may not display correctly after your Mac wakes from sleep. and you are
You need to press and hold the keys: Option + Command + P & R altogether. Turn back 'On' your MacBook and instantly hit the keys: Option + Command + P & R altogether. Make sure you press and hold the keys for at least 20 seconds before you release them!
To download and install OS X Yosemite:
You need to put your MacBook ($369 at Amazon) into Recovery Mode in order to erase all of your data and reinstall MacOS. To enter Recovery Mode on an Intel-based Mac, restart it and immediately press and hold Command-R. You can release the keys once you see the Apple logo.
Shut down your Mac, then start up from macOS recovery as described previously. When you're asked to select an admin user you know the password for, choose Erase Mac from the Recovery Assistant menu in the menu bar. From the Erase Mac window, click Erase Mac, then click Erase Mac to confirm.
How to Factory Reset Mac or MacBook (pre-macOS Monterery)
1:358:20This. So just select erase mac. Once we click on the erase mac it's going to give us this it's goingMoreThis. So just select erase mac. Once we click on the erase mac it's going to give us this it's going to tell us are you sure you want to erase your mac.
Factory Resetting Your MacBook Air A reset will generally increase the speed of your machine back to what it was when you first got your machine in its original state. A factory reset's also a necessary process if you're looking to sell your MacBook Air, in order to remove any and all user data left on the computer.
Perform a Factory Reset