I recently updated my laptop (a Thinkpad T460p) to the Windows 10 15019 Insider Preview from the previous Insider build. Before the update, my laptop was whole-drive-encrypted with Bitlocker, and had its fingerprint reader set up to allow sign-in with fingerprint (Windows Hello).
After the update, however, I noticed that it was no longer prompting me for my Bitlocker password at startup (and fingerprint sign ins didn't work). I went to Bitlocker settings and saw this:
Clicking "Resume Protection," however, results in an error:
And looking at the TPM Management program claims there is no TPM present:
And, finally, Device Manager claims the TPM 2.0 chip failed with code 10 - "The resource requested is already in use:"
I've tried disabling and re-enabling the TPM in my BIOS (it says it's something along the lines of an "Intel PTT 2.0"), with no success.
Has anyone run into this problem or have an idea of how to fix it? I'll probably roll back to the earlier build tomorrow, but if there's a way to fix this issue without going that far I'd much prefer that!
Also - I haven't yet tried the "Clear Keys" option in the BIOS. Am I right to worry that if I do that I might have issues unlocking my Bitlocker drive?
Thanks in advance!