The BitLocker encryption built into higher-end versions of Windows Vista goes a long way toward locking out intruders at the boot-drive level, but it's neither 100% hassle-free nor 100% secure.

If you see This PC doesn't support entering a BitLocker recovery password during startup, enable WinRE, tweak Group Policy, ...

If BitLocker thorws up error Too many PIN entry attempts,There is a limit on the number ot password attempts allowed in Windows 11/10, see this definitive fix.

His method is different from past BitLocker attacks because it requires hard-wiring into a computer's TPM chip and sniffing communications via the Low Pin Count (LPC) bus.