Windows 11 VM on Parallels has broken virtual TPM.

fella5 · Jul 15, 2026 at 11:06 AM

SystemsGuy said: ↑

TLDR; The MS update today was KB510650. Uninstalling the update got me back to working. But work will force it at some point.
After the update installed and I rebooted, it was like my work account lost contact with the VM. Had to reauthenticate which was not working correctly. Kept asking me for my PIN but it was failing. Rebooted a second time and got in and it readded my work account to VM, so it was like I was adding a new device. Kept getting Windows Hello errors and this machine does not meet work requirements. Turns out TPM failed, and of course could not enable encryption. Therefore BitLocker was turned off. Same thing after multiple reboots until I uninstalled the update.
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This worked for me.... so we shall see how long before it does get pushed.

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Windows 11 VM on Parallels has broken virtual TPM.

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Windows 11 VM on Parallels has broken virtual TPM.

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