I have a Dell 13-inch XPS 9370 that I bought in June 2018. After a Windows 10 update, I suddenly got repeated “Low Disk Space” warning messages on drive D:, which I didn’t create. After Googling, I found the solution. It turns out that this new drive D: is the recovery drive, and is not meant to have a drive letter. So the fix is to remove the drive letter and the annoying “Low Disk Space” warning messages will stop.

  1. Click your Start Button, type “cmd”, then right-click on “Command Prompt” and choose “Run as Administrator”
  2. Choose “Yes” when Windows asks if you want to allow the app to make changes to your computer
  3. Type “diskpart” and hit Enter
  4. Type “list volume” and hit Enter
  5. Type “select volume X” and hit Enter (where X is the volume number associated with that new drive with the ltr/letter D:)
  6. Type “remove letter=D” and hit Enter (where D is the drive letter that you want to remove)
  7. Close Command Prompt

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