For years, Windows users troubleshooting the entry in Device Manager have been met with a familiar headache: the small yellow exclamation mark. This cryptic entry, which stands for the Trusted Platform Module (TPM) 2.0 interface, has been a silent gatekeeper to security features—most notably BitLocker and Windows Hello.

Published: October 2021 | By: Hardware & Drivers Desk

If you have been ignoring that exclamation mark for years, now is the time to update. Just remember: after installing Driver 77, reboot twice. The first reboot finalizes the driver; the second allows the TPM to re-initialize its cryptographic state.

Popular Search

UltiMaker Cura

For advanced users looking to get the most custom control over their 3D printers.

UltiMaker Cura is free, easy-to-use 3D printing software trusted by millions of users. Fine-tune your 3D model with 400+ settings for the best slicing and printing results.

Download Cura 5.11 Free
-NEW- Acpi Msft0101 Driver 77 2021
-NEW- Acpi Msft0101 Driver 77 2021

Free slicing software

Powerful, open-source slicing engine, built through years of expert in-house development and user contributions.

-NEW- Acpi Msft0101 Driver 77 2021

Seamless Integration with MakerBot & UltiMaker 3D Printers

Cura ensures reliable, high-quality prints while supporting a wide range of materials for diverse educational applications. -NEW- Acpi Msft0101 Driver 77 2021

-NEW- Acpi Msft0101 Driver 77 2021

Desktop-based solution

A reliable, distraction-free workflow that supports STEM, design, and engineering education. For years, Windows users troubleshooting the entry in

-new- Acpi Msft0101 Driver 77 2021 -

For years, Windows users troubleshooting the entry in Device Manager have been met with a familiar headache: the small yellow exclamation mark. This cryptic entry, which stands for the Trusted Platform Module (TPM) 2.0 interface, has been a silent gatekeeper to security features—most notably BitLocker and Windows Hello.

Published: October 2021 | By: Hardware & Drivers Desk

If you have been ignoring that exclamation mark for years, now is the time to update. Just remember: after installing Driver 77, reboot twice. The first reboot finalizes the driver; the second allows the TPM to re-initialize its cryptographic state.