To fix the “Cannot install Windows, BitLocker Drive Encryption is enabled on selected partition” error, suspend BitLocker via Settings or Control Panel, or use your recovery key to unlock the drive.
I received a refurb Elitebook 820 G3 a few days ago, with a 256Gb SanDisk NVME drive that has (had?) Win10 Pro installed. I spent some time doing a minimal Win10 set-up but the goal was to make this a ...