How to Reinstall Mac Os Sierra?

How to Reinstall MacOS High Sierra or MacOS Sierra

Back up the Mac before beginning.
Reboot the Mac and hold down COMMAND + R keys concurrently right after you hear the boot sound, this will boot the Mac into Recovery Mode .
At the “macOS Utilities” screen choose “Reinstall macOS”

How do I Wipe my Mac and Reinstall Original OS?

Fully shut down your Mac.
Power up your Mac again but immediately press and hold the Shift Option ⌘ R.
Keep the keys down until you see either an Apple logo or spinning globe appear on screen Note: If you have a firmware password set on your system, then let go of the keys when the password prompt appears

How do I Wipe my Mac and Reinstall?

Make a fresh backup of your Mac.
Open System Preferences.
Click System Preferences in the menu bar > Erase All Contents and Settings.
Follow the prompts to fully erase your Mac.

How do I Reinstall OSX Without Disc?

Shut down your Mac.
Hold down CommandOption/AltR 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.

How do I Wipe and Reinstall MacOS X Sierra?

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.

Can I Reinstall High Sierra?

There are a few incredibly easy ways to back up the files, documents, applications, etc. So, you can choose the most convenient one for you. One of the possible Mac backup solutions built into macOS is Time Machine. Once youve backed up your files and cleaned your Mac, youre ready to reinstall macOS High Sierra.

How do I Reinstall Mac from Scratch?

Shut down your Mac, turn it on while holding down Command+R. Your Mac will boot into the recovery partition . If youre using an older Mac from 2010 or earlier, theres a chance that you cant use Recovery Mode. On those devices, hold “Option” while turning your computer on, then select the recovery partition instead.

How do I Wipe my Mac Hard Drive and Reinstall Operating System?

Select your startup disk on the left, then click Erase. Click the Format popup 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 Completely Format my Mac?

Click the Apple icon in the menu bar topleft corner.
Select System Preferences from the dropdown menu.
Select Erase All Contents and Settings.
Enter your password, select OK.
Select the Erase All Content & Settings button.