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Enabling Bitlocker

Posted on 2010-11-19
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Last Modified: 2012-05-10
I have a Windows 7 Enterprise laptop. When attempting to turn on Bitlocker i get the following message; ""A required TPM measurement is missing. If there is a bootable CD or DVD in your computer, remove it, restart the computer, and turn on BitLocker again. If the problem persists, ensure the master boot record is up to date"

There is not CD dvd or drive attached to the laptop.

TPM is enabled in the Bios. Has anyone come across this problem or know a solution to the problem?
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Question by:gerpaqit
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6 Comments
 
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Expert Comment

by:jrathi
ID: 34174229
here's how i did it:

installing windows 7 along with 100mb partition - sysprep and shutdown
capturing only the c: drive (installation) into a .wim file.

deploying onto a clean disk as following:

creating a 100mb partition as c: (ntfs, active, label="system reserved")
creating a second partition and assigning letter d: (ntfs, label="windows").
applying the captured .wim onto drive d:
using "bcdboot.exe d:\windows" so the bios can find the installation.
windows boots up and once i'm on the desktop the partition with windows is now c: and the former 100mb c: drive is my system reserved partition with no drive letter.
0
 

Author Comment

by:gerpaqit
ID: 34174542
Strange thing is that on one of the laptops i have imaged, Bitlocker went on fine. On two others that users are currently using and were imaged from the same file as the one that worked fine gave the error i have listed above. Don't understand how that could happen.
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Accepted Solution

by:
gerpaqit earned 0 total points
ID: 34204563
Solved problem by download Easues Partition Manager and creating a 5 GB E: partition. Ran Bitlocker and all worked fine
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Author Comment

by:gerpaqit
ID: 34204578
Solved issue by creating a second partition on the drive
0
 

Author Closing Comment

by:gerpaqit
ID: 34228575
Fixed issue myself
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