How to Perform a Clean Install

Erasing, reformatting and then clean installing your operating system with a USB installer is our last resort if the SSD doesn't show up after quick troubleshooting, but it usually sets your computer up for complete success by giving you a truly blank slate.

Here's What to Do (Takes 30 Minutes)

  1. With your OEM plugged in, create a USB installer of your preferred OS (links that include tutorial videos below) on a flash drive that has at least 8GB of free space.
    1. Mojave
    2. High Sierra
    3. Catalina
  2. After the installer is made, turn your computer off, and replace your Apple OEM with your new Feather SSD.
  3. Plug your installer into the computer.
  4. While holding down the OPTION key, press POWER and hold down OPTION until you hear chimes.
  5. Once booted, you should see a drive select screen. Select the USB installer you just made.
  6. Go to Disk Utility. Select the new Fledging Feather.
  7. Hit Erase in the top-middle of the Disk Utility window.
  8. Reformat the SSD.
    1. If you're using High Sierra, use macOS Extended (Journaled) with GUID Partition Map.
    2. If you're using Mojave, Catalina, or Big Sur, use APFS with GUID Partition Map.
    3. Note: If the drive won’t erase and reformat, try adding a partition to the drive. Then erase and format the drive as described above. Sometimes a computer needs to be "reminded" that it can make changes to the drive.
  9. Quit Disk Utility. This should place you at MacOS Utilities.
  10. Select Install MacintoshHD
  11. Select “Macintosh HD” as the destination to install your new OS, then choose “Install.” This will begin the process of clean installing the OS onto the Mac, it may take a while to complete.
  12. Your Mac will reboot itself automatically during the process, let it finish and do not interrupt the installation. After the clean install has completed, your Mac will boot back into a fresh and new installation of the MacOS, as if the computer were new.