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Guest
have installed and set up BitLocker on a Sony VAIO with a TPM 1.2 chip. The
drive has been fully encrypted. With BitLocker on, everytime the system boots
I get the following message:
Windows BitLocker Drive Encryption Information
The system boot information has changed since BitLocker was enabled.
You must supply a BitLocker recovery password to start this system.
Confirm that the boot changes to this system are authorized.
If the changes to the boot system are trusted, then disable and re-enable
BitLocker. This will reset BitLocker to use the new boot information.
Otherwise, restore the system boot information.
ENTER=Continue
I have tried disabling and re-enabling Bitlocker (disable; reboot; enable;
reboot) and get the same message. I have even tried disabling to the point of
decrypting and then re-encrypting the whole drive. Neither apporach has
worked. According to the BitLocker FAQ, one of the following should trigger
the message I'm getting:
Unauthorized changing of the BIOS, master boot record (MBR), boot sector,
boot manager, or other early boot components would cause a failure in the
integrity checks and keep the TPM-protected key from being released. This is
by design because unauthorized modification of any of those components could
and should be perceived as an attack. Of course, the BitLocker feature
provides methods for authenticated system administrators to update these
components if required.
None of that has happened. Any suggestions?
Thanks in advance.
drive has been fully encrypted. With BitLocker on, everytime the system boots
I get the following message:
Windows BitLocker Drive Encryption Information
The system boot information has changed since BitLocker was enabled.
You must supply a BitLocker recovery password to start this system.
Confirm that the boot changes to this system are authorized.
If the changes to the boot system are trusted, then disable and re-enable
BitLocker. This will reset BitLocker to use the new boot information.
Otherwise, restore the system boot information.
ENTER=Continue
I have tried disabling and re-enabling Bitlocker (disable; reboot; enable;
reboot) and get the same message. I have even tried disabling to the point of
decrypting and then re-encrypting the whole drive. Neither apporach has
worked. According to the BitLocker FAQ, one of the following should trigger
the message I'm getting:
Unauthorized changing of the BIOS, master boot record (MBR), boot sector,
boot manager, or other early boot components would cause a failure in the
integrity checks and keep the TPM-protected key from being released. This is
by design because unauthorized modification of any of those components could
and should be perceived as an attack. Of course, the BitLocker feature
provides methods for authenticated system administrators to update these
components if required.
None of that has happened. Any suggestions?
Thanks in advance.