Frequent question: How do I do a clean install of macOS High Sierra?

How do I clean my High Sierra install USB?

Create a bootable macOS installer

  1. Download macOS High Sierra from the App Store. …
  2. When it’s finished, the installer will launch. …
  3. Plug in the USB stick and launch Disk Utilities. …
  4. Click the Erase tab and make sure Mac OS Extended (Journaled) is selected in the format tab.
  5. Give the USB stick a name, then click Erase.

How do I do a clean install of High Sierra without USB?

Tutorial

  1. Restart your Mac, or power it on, while holding down the Command + R key combination.
  2. Release the Command + R key combination once you see the Apple logo on display. …
  3. Once you see a window like the one below, click on Disk Utility and Erase your main Mac HDD (or SSD).

Why is Mac High Sierra not installing?

To fix the macOS High Sierra problem where the installation fails due to low disk space, restart your Mac and press CTL + R while it’s booting to enter the Recover menu. … It may be worth restarting your Mac in Safe Mode, then trying to install macOS 10.13 High Sierra from there to fix the problem.

How do I do a clean install of macOS 10.13 High Sierra?

In this post, we’ll describe how to do a clean install of macOS 10.13 High Sierra.

  1. Reasons to Perform a Clean Install. …
  2. Step 1: Backup Your Mac. …
  3. Step 2: Create a Bootable macOS High Sierra Installer. …
  4. Step 3: Erase and Reformat the Mac’s Boot Drive. …
  5. Step 4: Install macOS High Sierra. …
  6. Step 5: Restore Data, Files and Apps.

How can I speed up my old imac?

Here are the top ways to speed up a Mac:

  1. Clean up system files and documents. A clean Mac is a fast Mac. …
  2. Detect & Kill Demanding Processes. …
  3. Speed up startup time: Manage startup programs. …
  4. Remove unused apps. …
  5. Run a macOS system update. …
  6. Upgrade your RAM. …
  7. Swap your HDD for an SSD. …
  8. Reduce Visual Effects.

How do I wipe my Mac and reinstall?

Erase and reinstall macOS

  1. Start up your computer in macOS Recovery: …
  2. In the Recovery app window, select Disk Utility, then click Continue.
  3. In Disk Utility, select the volume you want to erase in the sidebar, then click Erase in the toolbar.

How do I download the full High Sierra installer?

How to Download the Full “Install macOS High Sierra. app” Application

  1. Go to dosdude1.com here and download the High Sierra patcher application*
  2. Launch “MacOS High Sierra Patcher” and ignore everything about patching, instead pull down the “Tools” menu and choose “Download MacOS High Sierra”

How do I reinstall my High Sierra Macbook Pro?

Hold down Option-Command-R as you turn on or restart your Mac. Release the keys when a spinning globe appears. This will boot the latest version of Recovery Mode over the Internet, which will offer to install macOS High Sierra. When the main Utilities window appears, select Disk Utility and continue.

How do I reset my 2011 IMAC High Sierra?

How to Factory Reset Mac OS X to Original Default Factory Settings

  1. Reboot the Mac and right after the boot chime sound, hold down the COMMAND + R keys together to boot into Recovery Mode.
  2. Once in Recovery Mode and at the “macOS Utilities” (or “OS X Utilities”) screen, select “Disk Utility”

How do I reinstall OS without USB?

Hold down the shift key on your keyboard while clicking the Power button on the screen. Keep holding down the shift key while clicking Restart. Keep holding down the shift key until the Advanced Recovery Options menu loads. Click Troubleshoot.

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