How do I uninstall an operating system on a Mac?

How do I wipe my Mac and reinstall OS?

Select your startup disk on the left, then click Erase. Click the Format pop-up menu (APFS should be selected), enter a name, then click Erase. After the disk is erased, choose Disk Utility > Quit Disk Utility. In the Recovery app window, select “Reinstall macOS,” click Continue, then follow the onscreen instructions.

How do I remove old versions of OSX?

Mac OS X 10.3 Panther® or later:

1. Using your Admin account, drag the Previous Systems folder to the Trash.
2. Type your Admin password when requested to authenticate this operation.
3. Empty the Trash.

How do I restore my Mac to factory settings?

How to Factory Reset: MacBook

1. Restart your computer: hold the power button > select Restart when it appears.
2. While the computer restarts, hold down the ‘Command’ and ‘R’ keys.
3. Once you see the Apple logo appear, release the ‘Command and R keys’
4. When you see a Recovery Mode menu, select Disk Utility.

1 февр. 2021 г.

How do you uninstall a software update on a Mac?

Click the Apple () icon in the top left corner of your screen, then select and click System Preferences… from the dropdown menu. Click App Store from the System Preferences menu. Uncheck Download newly available updates in the background by clicking on the blue box with the white checkmark.

Can you delete previous Mac updates?

Click the Manage button and then click iOS Files in the left panel to view the local iOS backup files you have stored on your Mac. If you no longer need them, highlight them and click the Delete button (and then Delete again to confirm your intention to permanently delete the file).

How do I remove unwanted files from my Mac?

What are user cache files and how to remove them?

1. Open Finder.
2. Press Command+Shift+G.
3. Enter the following command into the field and select Go: ~/Library/Caches .
4. In the window that appears, you will see all your cache files.
5. Press Command+A to select all files and delete them.

3 нояб. 2019 г.

Do Macs have System Restore?

Unfortunately, Mac does not provide a system restore option like its Windows counterpart. However, if you are using Mac OS X as well as an external drive or AirPort Time Capsule, a built-in back up feature called Time Machine may help you achieve your ends.

How do you restore Internet on a Mac?

Here is how to use MacOS Internet Recovery:

1. Shut down your Mac.
2. Hold down Command-Option/Alt-R and press the Power button. …
3. Hold down those keys until you a spinning globe and the message “Starting Internet Recovery. …
4. The message will be replaced with a progress bar. …
5. Wait for the MacOS Utilities screen to appear.

1 февр. 2021 г.

Where is recovery on Mac?

How to start Mac in Recovery Mode

1. Click on Apple logo at the top left of the screen.
2. Select Restart.
3. Immediately hold down the Command and R keys until you see an Apple logo or spinning globe. …
4. Eventually your Mac will show the Recovery Mode Utilities window with the following options:

2 февр. 2021 г.

How do I factory reset my IMAC 2014?

1. Restart the Mac in Recovery Mode (hold down Command and the R key during restart).
2. Use Disk Utility to erase the hard drive. Click on Disk Utility > Continue. Select the main volume and click Unmount then Erase). …
3. Click Reinstall OS X and Continue. Follow the instructions to reinstall Mac OS X.

23 мар. 2016 г.

How do you restart a Mac desktop?

To restart a Mac computer, you have three choices:

1. Press the power button (or press Control+Eject) and, when a dialog box appears, click the Restart button.
2. Choose the Apple key and then click Restart.
3. Press Control+Command+Eject (or Control+Command+Power button).