How to use Internet Recovery to reinstall macOS
- Shut down your Mac.
- Hold down Command-Option/Alt-R and press the Power button.
- Hold down those keys until you a spinning globe and the message “Starting Internet Recovery.
- The message will be replaced with a progress bar.
- Wait for the MacOS Utilities screen to appear.
How do I wipe my Mac and reinstall OS X?
Restart your Mac. Choose Apple menu > Shut Down, press and hold the power button until “Loading startup options” appears, select Options, click Continue, then follow the onscreen instructions. In the Recovery app window, select Reinstall for your macOS release, click Continue, then follow the onscreen instructions.
What do I do if I can’t reinstall OS X?
Can’t Reinstall OS X On Your Mac? Try Resetting The PRAM
- First, completely shut down your Mac via the Apple Toolbar.
- Then, hold down Command, Option, P, and R buttons on your keyboard as you restart your Mac.
- After the second chime, let go of the buttons and let your Mac restart as normal.
How do I manually reinstall Mac OS X?
Reinstall macOS
- Install the latest version of macOS compatible with your computer: Option-Command-R.
- Reinstall your computer’s original version of macOS (including available updates): Option-Shift-Command-R.
- Reinstall your current version of macOS: Command-R.
How do I reinstall macOS without recovery mode?
If your Mac is missing a Recovery partition, then you may be able to restore it, by resetting your PRAM. To reset the PRAM, restart your Mac while holding down the ‘Command+Option+P+R’ keys until you hear macOS’ distinctive startup chimes for a second time.
Can I restore my Mac to a previous date?
As soon as you enable Time Capsule and create backups with Time Machine, you can use the option to restore the system to the previous date. For this purpose, you have to launch OS X Recovery Tool: When you boot up your system or restart it, click Command key + R simultaneously to open OS X Recovery Tool.
How do I wipe an old iMac?
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. This clears user settings from memory and restores certain security features that might have been altered.
How do you reinstall El Capitan?
Once you’ve done that, here’s how to install, reinstall, or upgrade to El Capitan, step by step: Boot from your Recovery HD partition by restarting your Mac while holding down the Command+R keys. The OS X Utilities window appears. Select Reinstall OS X, and click Continue. The OS X El Capitan splash screen appears. Click Continue.
Can I delete OS X El Capitan?
Click the Erase button and wait for the operation to complete. The Mac maintenance and security app called Combo Cleaner is a one-stop tool to detect and remove OS X El Capitan virus.
How long does it take to reinstall Mac OS X?
MacBook Pro: OS X reinstall is taking “forever”, (over 12 hours) to finish. I’d suggest pulling down the installer on another Mac and creating a local installation source. Installing it over the internet is a multi-hour process.
How do I reinstall OS X on Mac?
Steps Hold down the “Command” and “R” keys while your Mac is booting. Select “Recovery HD” when prompted and click the arrow below it to boot into recovery mode. Select “Reinstall Mac OS X “ from the Mac OS X Utilities dialog followed by the “Continue” button.
