Missing Driver For Acpimsft0101 Device

TPM module driver issue in Windows 7

Missing driver for ACPIMSFT0101 device

After the Windows update in October 2017, some Windows 7 users have reported problems with the TPM (Trusted Platform Module) module. In Device Manager, an exclamation point appears under Security devices, and the TPM device is listed as ACPIMSFT0101 with no driver installed.

Fix for Windows 7 64-bit

If you are experiencing this issue and are running Windows 7 64-bit, you can download and install the Microsoft hotfix for the ACPIMSFT0101 device. Once installed, the hotfix should install the driver for the device and resolve the issue.

Note for Windows 7 32-bit users

The Microsoft hotfix is only compatible with Windows 7 64-bit. If you are running Windows 7 32-bit, you will need to contact your computer manufacturer for assistance.

If you are still experiencing issues with the TPM module, please consult the Lenovo Support website for more information.

Conclusion

The TPM module is an important security feature in Windows 7. If you are experiencing problems with the TPM module, it is important to install the latest drivers and updates to ensure that your system is protected.