-new- Acpi Msft0101 Driver 77 2021

Furthermore, some users reported that after installing Driver 77, they were prompted to clear the TPM. If you use BitLocker or have saved passwords in the TPM, BACK UP YOUR RECOVERY KEY before updating.

If this driver is missing or corrupted, you see error code 31 or 28. The generic Microsoft driver often fails to properly initialize the TPM, leading to system instability, random stuttering on AMD Ryzen systems (a notorious issue), or the complete inability to enable device encryption. -NEW- Acpi Msft0101 Driver 77 2021