Updating operating systems for the mac
Forgetting the PIN when PIN authentication has been enabled. Using a different keyboard that does not correctly enter the PIN or whose keyboard map does not match the keyboard map assumed by the pre-boot environment. Modifying the Platform Configuration Registers (PCRs) used by the TPM validation profile.For example, including PCR would result in most changes to BIOS settings, causing Bit Locker to enter recovery mode.
Conversely, if a portable computer is not connected to its docking station when Bit Locker is turned on, then it might need to be disconnected from the docking station when it is unlocked.
I have successfully encrypted the C: drive with bitlocker. However, every time I boot it, I have to enter the key.
I have found several articles about this and they all pretty much say the same thing. "The system boot information" are a lot of things, please verify if any of the following could have changed: What causes Bit Locker to start into recovery mode when attempting to start the operating system drive?
Disabling the code integrity check or enabling test signing on Windows Boot Manager (Bootmgr).
Pressing the F8 or F10 key during the boot process.
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Anti-hammering logic is software or hardware methods that increase the difficulty and cost of a brute force attack on a PIN by not accepting PIN entries until after a certain amount of time has passed.