Updating to the latest version of the ACPI MSFT0101 driver can bring several benefits, including:
Keep the "Attempt to remove the driver for this device" box , then click Uninstall .
If the driver cannot be installed (common on older OS versions), the device can sometimes be disabled in the BIOS by turning off TCG Support Microsoft Learn Are you currently seeing an "Unknown Device" error in your Device Manager, or are you trying to verify compatibility for a Windows upgrade? ACPI\MSFT0101 there is any driver that can install this?
The ACPI MSFT0101 error is more than just an annoyance. A broken TPM means: -NEW- Acpi Msft0101 Driver 77 2021
The text could be announcing a new (updated) driver for ACPI-compliant hardware, specifically the Acpi Msft0101 device, released or updated in 2021, version 77.
: The 2021 update patched several firmware-level security vulnerabilities discovered in older Intel TXE and TPM modules.
✅ Download Driver 77 from OEM or AMD Chipset drivers. ✅ Install via Device Manager → Have Disk. ✅ Reboot and verify with tpm.msc . ✅ Run Windows 11 upgrade if desired. Updating to the latest version of the ACPI
Think of it as a security chip built into your processor. Its main role is to handle cryptographic keys and help with system security features like:
The TPM 2.0 chip is responsible for hardware-based security tasks, including:
To ensure we pinpoint the right fix for your machine, let me know: What is your computer or motherboard? The ACPI MSFT0101 error is more than just an annoyance
If you downloaded a specific 2021 driver package (containing .inf , .sys , and .cat files), install it manually: Right-click the Start menu and select .
Right-click the Windows Start menu and select . Expand the Security devices branch.