Problem with Bitlocker

T

Tiejaeger

New Member
Hallo
I have encrypted the hard disk of my Lenovo W700 with Bitlocker (TPM + PIN and 256bit AES with diffuser). I use Vista Ultimate 64 Bit and have installed all updates.

The problem is that every time I start my computer I have to input the bitlocker key (not only the pin but the whole recovery key)! I have deactivated and activated Bitlocker several times. This is what Microsoft suggests to do. So that all new system configurations are applied and they are registered with Bitlocker. But that doesn’t help. Even if I do not change anything on the system I have to input the key after a restart.

What should I do now? Can anyone help me, please?

Thanks Enrico
 

My Computer

System One

I had this happen to me.

The problem is for whatever reason is it no longer sees your TPM as being tamper-free, (and/or your usb key is not read at startup if one is used-a 500mb usb thumbdrive or smaller is the only thing that works for me).

Fix:
Enter recovery key if necessary, unencrypt all bitlocker encrypted drives, create new usb key and/or TPM key, and re-encrypt drives.
 
Last edited:

My Computer

System One

  • CPU
    T7600G Core2Duo 2.66 Ghz
    Motherboard
    Intel 945PM + ICH7 Chipset
    Memory
    4GB DDR2 PC2-5300 667MHz
    Graphics Card(s)
    Mobility Radeon x1900 256MB
    Sound Card
    Realtek HD
    Monitor(s) Displays
    WUXGA 17"
    Screen Resolution
    1920X1200
    Hard Drives
    640GB 7200RPM SATA/RAID 0 (2x320GB)
    and 320GB 7200RPM External
    Mouse
    Wireless Microsoft 3000
    Internet Speed
    10 mbps/2 mbps
    Other Info
    Optical Drive:
    Panasonic UJ-220 DL BD-RE (Blu-Ray)
I'm encountering the same issue. Even if I disable Bitlocker, reenable it and immediately reboot, it claims my configuration "has changed" and I have to insert my recovery key (or type it in manually, either way.)
 

My Computer

System One

I've not tried a full decryption. I'll give that a shot and reinitialize TPM afterwards.

Any idea what causes this, so I don't inadvertently get into the same situation again?
 

My Computer

System One

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