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Windows 7 Bitlocker requirement.

Posted on 2012-04-11
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Last Modified: 2012-04-18
We have plan to evaluate Windows 7 Bitlocker on our domain PCs and laptops.  Some of the system models are old.  

Does a PC or laptop need to have a TPM chip in order for us to encrypt its C drive?  

Please advise.
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Question by:nav2567
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by:Tosiisoa
Tosiisoa earned 167 total points
ID: 37834354
No, you don't need TPM chip for bitlocker if you use USB stick to store its key.

http://windows.microsoft.com/en-US/windows7/Hardware-requirements-for-BitLocker-Drive-Encryption
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by:nav2567
ID: 37835593
Can I save the the encryption and key to a network drive instead?
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by:David Johnson, CD, MVP
David Johnson, CD, MVP earned 333 total points
ID: 37836248
no it must be a LOCAL drive i.e. USB KEY that is accessible on boot before the network is loaded.
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by:nav2567
ID: 37844976
What is the procedure if a user lost her USB key?  Assuming she has the recovery file being saved somewhere in our network drive.  

Please advise.
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David Johnson, CD, MVP earned 333 total points
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by:nav2567
ID: 37845346
I should not need to do the above if I save the recovery key to a file and copy it into a save location on the network, right?

From what I have learned so far, a Bitlocker encrypted laptop will require the USB for start up.  If this USB drive is lost, can the user still access her data in the encrypted C drive with only the recovery key from the file I saved in the encryption process?  This is what I am trying to ask.  

Please advise again.  Thanks.
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Expert Comment

by:David Johnson, CD, MVP
ID: 37845364
Yes but it is a Very long parameter.. also DON'T format that DRIVE!!!!

BitLocker-Recovery-Key-643D0E5A-.txt
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