Took me a few hours to figure this out, figured I’d pass it along. Forgive formatting, I’m on mobile.
How to Bypass Bitlocker for Crowdstrike BSoD
Only use this if the Bitlocker key is lost.
From the Bitlocker screen, select Skip This Drive. A command prompt will appear.
Type bcdedit /set {default} safeboot network and press Enter.
Type Exit to exit the command prompt, then select Shut Down
Hardwire the device to the network
Login as an admin account
Navigate to C:\Windows\System32\Drivers\Crowdstrike and delete C:\windows\system32\drivers\crowdstrike\c-00000291-*.sys
Win+R to open the Run menu, then type msconfig and press Enter
Go to Boot
Uncheck the box for SafeBoot
You will receive a warning about Bitlocker. Proceed.
Click OK and you will be prompted to restart. Do so.
Have the user login
Test their access to files
No, this means the recovery key or other external unlocks have been lost, but the TPM chip is still working correctly to provide the bitlocker key during boot.
This is not bypassing bitlocker, simply bypassing loading the bsod causing crowdstrile driver by booting into safe mode. You still need a valid administrator account so authentication is also not compromised.
You would still need some kind of exploit to bypass the windows login screen.
