I used bitlocker under Vista very successfully. It also worked fine when I upgraded to Windows 7. Using a Dell xps 420
However several months after the upgrade my USB key stopped working. I kept getting the message to insert my encryption key when it was already installed. The key itself appears to be fine.
I used my hard copy of the recovery key to access my pc, but when I tried to boot from the key the PC doesn't see it? I initailly thought it wasn't coping the file to the key but it was only hidden.
I've tried multiple keys from 128mb to 4Gb.Thanks for any help.
Echo

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Make sure that BIOS has enabled USB Boot Support along with check the following blog post.

http://blogs.technet.com/b/askcore/archive/2010/08/04/issues-resulting-in-bitlocker-recovery-mode-and-their-resolution.aspx

Thanks,Tanner --- This is posted as-is and has no warranty or guarantee ---

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