Question: How Do You Reset A Mac OS?

How long does it take to factory reset an iMac?

I’d estimate anywhere from 1 to 5 hours would be the norm but it’s possible for it to take up to 12 hours.

Make sure you erase everything securely before selling it so the buyer can’t recover your saved passwords.

Several seconds if done properly: What to do before selling or giving away your Mac..

How do I wipe and reset my MacBook?

How to Factory Reset: MacRestart your computer: hold the power button > select Restart when it appears.While the computer restarts, hold down the ‘Command’ and ‘R’ keys.Once you see the Apple logo appear, release the ‘Command and R keys’When you see a Recovery Mode menu, select Disk Utility.More items…•

How do I wipe my Mac and reinstall Catalina?

Restart and InstallUse the mouse pointer or the arrow keys on your keyboard to select the disk called Install ‌macOS Catalina‌ in the drive list that appears on the screen.Once the USB drive has booted, select Disk Utility from the Utilities window, choose your Mac’s startup drive from the list, and click Erase.More items…•

How do I factory reset my Macbook Pro 2020?

Reset NVRAM Here’s how to do it: Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. Release the keys after about 20 seconds.

How do I factory reset my IMAC without password?

3. Use Recovery Mode to reset your passwordTurn off your Mac (choose Apple > Shut Down).Press the power button while holding down Command + R. … When you see the load bar appear you can let go of the keys. … Select Disk Utility and press Continue.Choose Utilities > Terminal.More items…•

How do I reset my desktop to factory settings?

Navigate to Settings > Update & Security > Recovery. You should see a title that says “Reset this PC.” Click Get Started. You can either select Keep my files or Remove everything. The former resets your options to default and removes uninstalled apps, like browsers, but keeps your data intact.

How do I restore my MacBook Air to factory settings without CD?

How to Reset a MacBook Pro to Factory Settings Without a DiscSet the MacBook Pro to restart. Hold down the “Command” and “R” keys when the gray screen appears during the boot process. … Select “Disk Utility” from the next screen and click “Continue.” Choose your hard drive in the list and click “Erase.”Click the “Mac OS Extended (Journaled)” option in the new dialog.

How do I reset my Mac?

How to reset a MacBook Air or MacBook ProHold down the Command and R keys on the keyboard and turn on the Mac. … Select your language and continue.Choose Disk Utility and click continue.Choose your startup disk (named Macintosh HD by default) from the sidebar and click the Erase button.More items…•

How do I wipe my Mac and reinstall?

Select your startup drive on the left (typically Macintosh HD), switch to the Erase tab and choose Mac OS Extended (Journaled) from the Format drop-down menu. Select Erase and then confirm your choice. Quit out of the Disk Utility app, and this time choose Reinstall OS X and Continue.