-new- Acpi Msft0101: Driver 77 2021

Uninstall the device from Device Manager, check "Delete the driver software for this device," and restart your computer to allow Windows to reinstall it. Manual Installation:

Microsoft provides this driver natively within Windows. You typically do not need to download it from a third-party site; running Windows Update will fetch the latest security device updates automatically.

, which made a functional TPM 2.0 (MSFT0101) a strict system requirement. Ask Ubuntu ACPI BIOS - Windows drivers - Microsoft Learn -NEW- Acpi Msft0101 Driver 77 2021

The root cause? Microsoft’s inbox driver (provided via Windows Update) was often generic or outdated. It failed to properly initialize the TPM firmware interface on certain hardware combinations, particularly when the BIOS was in “Discrete TPM” mode vs. “Firmware TPM” (fTPM).

If the device is missing entirely, you may need to enter your BIOS and enable Intel PTT (Platform Trust Technology) or AMD fTPM . Uninstall the device from Device Manager, check "Delete

This OS does not natively support TPM 2.0, often resulting in a "yellow bang" or "Unknown Device" for ACPI\MSFT0101 unless a specific Microsoft hotfix ( ) is installed. kb.stonegroup.co.uk Common Issues and Troubleshooting

To give you the most , here’s what you likely need: , which made a functional TPM 2

Users often encounter errors where the device is "migrated" or fails to start with a protocol error. Microsoft Learn Yellow Bang in Device Manager: If the driver is missing, it will appear as an Unknown Device