1. Insert a backup USB drive onto which to copy the files first
2. Boot the computer and input the Bitlocker key however many times needed (probably 2?)
3. Get to the windows recovery options, go to Advanced troubleshooting and select the Command Prompt
4. Select the C drive and copy the folders using xcopy and files with copy

c:
Xcopy /E /I UserAbc d:\usersfiles

• Windows 10 Intel RST raid setup in Bios with Bitlocker encryption

• https://www.makeuseof.com/bootrec-fixboot-access-denied-windows/
• https://www.windows-commandline.com/copy-directory-command-line/