📎 AI Summary:
In this WindowsForum thread, Basher reports a problem with a BitLocker-encrypted drive that suddenly became incompatible with Windows 8.1, preventing access. Josephur suggests troubleshooting steps such as reseating the drive, checking BIOS settings, and updating the BIOS or TPM firmware to resolve the issue. The overall tone is seeking and offering technical advice to fix a drive encryption problem.
Basher

Basher

Honorable Member
Joined
Mar 15, 2009
Messages
357
Thread Author #1
Hi Guys,

I went to bed last night with a reasonably happy computer, came down this morning and one of my drives wouldn't unlock, giving me a message saying that "The BitLocker encryption on this drive isn't compatible with you version of windows. Try opening the drive using a newer version of Windows." urm, 8.1 as far as I am aware is the newest.

Has anyone got any idea as to why and a possible solution?

Kind regards

Basher
 

Solution
Josephur
I know it sounds silly, but try removing the drive from your computer, blow off any dust, and re-attach it to a different SATA port. Make sure your BIOS settings are correct for that port to be enabled, etc.
Also if your feeling frisky, look for an update to your BIOS and read any change log it may have, see if there have been any changes to its TPM module, if so update.
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Josephur

Josephur

Windows Forum Admin
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Microsoft Certified Professional
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Aug 3, 2010
Messages
1,283
#2
I know it sounds silly, but try removing the drive from your computer, blow off any dust, and re-attach it to a different SATA port. Make sure your BIOS settings are correct for that port to be enabled, etc.
Also if your feeling frisky, look for an update to your BIOS and read any change log it may have, see if there have been any changes to its TPM module, if so update.
 

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