Acpi Msft0101 Windows 7 32 Bit

Windows 7 ACPI Driver Issue: Unknown Device Problem

Background

On March 9, 2017, users reported an issue with an unknown device identified as "ACPIMSFT0101" in Windows 7. This issue affects both 32-bit and 64-bit versions of Windows 7.

Symptoms

The symptoms of this issue include:

• An unknown device with the name "ACPIMSFT0101" appears in Device Manager.
• The device cannot be identified by Windows Update.
• The device does not have a driver installed.

Solution

Intel has advised users to use only Skylake processors to resolve this issue. However, if you are still experiencing problems, you can try the following steps:

1. Run the Microsoft ACPIMSFT0101 hotfix for Windows 7 64-bit.
2. Try installing the latest ACPI driver from the manufacturer of your motherboard.
3. Go to Start > Settings > Update & Security > Windows Update and check for updates.

Additional Information

This issue may be caused by a bug in the ACPI driver. Microsoft has released a hotfix to address this issue, but it is only available for Windows 7 64-bit. If you are using Windows 7 32-bit, you may need to wait for Microsoft to release a hotfix for that version of Windows.

In the meantime, you can try the steps above to resolve this issue. If you are still having problems, you can contact Microsoft support for assistance.