BitLocker Recovery not working on Lenovo T60

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sandeep - 27 Sep 2006 19:01 GMT

I have been able to make BitLocker work with the TPM on a Lenovo Thinkpad T60.
BUT I am running into problems when I try to do a BitLocker recovery. In
order to test the recovery, I inactivated the TPM in the BIOS utility and as
expected BitLocker prompts me for the recovery password. It seems to accept
the password and seems like windows is booting but it crashes with a blue
screen after a few seconds. I tried safe mode and it seems it fails right
after loading "crcdisk.sys" .
Has anyone seen symptoms like this ?

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Jamie Hunter [MS] - 28 Sep 2006 07:18 GMT

The fact that it got even as far as loading the drivers means the recovery
portion worked. The reason why it crashed is directly related to the TPM
being deactivated. We've hit this bug internally, understand the cause, and
working with Lenovo to figure out the right solution.
--
Jamie Hunter [MS]

>I have been able to make BitLocker work with the TPM on a Lenovo Thinkpad
>T60.
[quoted text clipped - 7 lines]
> after loading "crcdisk.sys" .
> Has anyone seen symptoms like this ?

Reply to this Message

sandeep - 29 Sep 2006 21:34 GMT

Thanks for the reply Jamie. Just curious if you know already if the
potential bug fix is going to be a BIOS update/driver update so that I can
keep an eye out for it.

> The fact that it got even as far as loading the drivers means the recovery
> portion worked. The reason why it crashed is directly related to the TPM
[quoted text clipped - 14 lines]
> > after loading "crcdisk.sys" .
> > Has anyone seen symptoms like this ?

Reply to this Message

Jamie Hunter [MS] - 30 Sep 2006 06:57 GMT

I wish I could, but it's too early to say right now.
Workaround is to use either of the other two options offered by the BIOS
(fully on, or fully off).
--
Jamie Hunter [MS]

> Thanks for the reply Jamie. Just curious if you know already if the
> potential bug fix is going to be a BIOS update/driver update so that I can
[quoted text clipped - 25 lines]
>> > after loading "crcdisk.sys" .
>> > Has anyone seen symptoms like this ?

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