Can't install Windows using Boot Camp Assistant because BitLocker is enabled!

macos tips
1

I receive this notice each time I attempt to install Windows 10 via Bootcamp: " Boot Camp Assistant was unable to verify if the Windows partition contains a Windows installation. This may be because BitLocker is enabled on the partition. If so, disable BitLocker on the disk before removing Boot Camp "

2

When you receive the Boot Camp Assistant unable to read the Windows partition error and maybe because BitLocker is enabled on the partition, it indicates that you may not have removed the previously installed Windows partition. To fix this issue, you can follow the steps below

  1. Open Terminal from Applications.
  2. Type diskutil list and press Enter.
  3. Write down the disk identifier of the Microsoft Reserved partition or the Windows Recovery partition.
  4. Then enter diskutil eraseVolume free free disk0s3 and press Enter
  5. Retry to install Windows via Boot Camp Assistant.
3

Have you installed Windows partitions before? It seems that the previously installed Windows partition hasn’t been thoroughly removed, so it triggers the error message. You should first remove the Windows partition in Terminal and then continue using the Boot Camp Assistant to install Windows.

If this doesn’t work, you can back up the macOS partition, erase the entire disk, restore the Mac from the backup, and then proceed to install macOS.

4

Yes, I have installed Windows before and removed it, now I need to install Windows on my Mac for work.

5

It worked. It so great I don’t need to erase the whole drive!