How to Fix wmiacpi.sys Blue Screen Error on Lenovo

Are you getting a “Stop code: SYSTEM_SERVICE_EXCEPTION” error message?

Here’s the second part of the error, “What failed: wmiacpi.sys”.

The file is related to the ACPI WMI driver, which is an extension of the ACPI specification.

This driver manages power-related functions and configurations on a computer.

ACPI is a standard for power management and configuration of computer systems.

The WMI interface allows apps and scripts to query and configure the operating system.

In this guide, you’ll learn how to fix the wmiacpi.sys blue screen (BSOD) error on Lenovo on Windows 10 or 11.

Fix 1: Update Lenovo Vantage

1. Search for “Lenovo Vantage” using Windows Search and open it.
2. Click on the “Check for updates” button.
3. Update Lenovo Vantage if an update is available.

Note: If you’re still facing the BSOD error, try the next fix instead.

Fix 2: Reinstall Lenovo Vantage

1. Search for “Settings” using Windows Search and open it.
2. Apps > Installed Apps > Search for “Lenovo Vantage”.
3. Click on the three dots next to “Lenovo Vantage” and select “Uninstall”.
4. Click on the three dots next to “Lenovo Vantage Service” and select “Uninstall”.
5. Restart your computer.
6. Open the Microsoft Store and search for “Lenovo Vantage”.
7. Reinstall Lenovo Vantage.

Note: If you’re still facing the BSOD error, try the next fix instead.

Fix 3: Update BIOS and Energy Management

1. Go to https://pcsupport.lenovo.com/us/en.
2. Select “Detect Product” or “Browse Product” and find your computer’s model.
3. Select “Drivers & Software”.
4. Under “Manual Update”, click on the “Select Drivers” button.
5. Select “BIOS/UEFI”.
6. Download the “BIOS Update”.
7. Select “Back To Manual Driver List”.
8. Select “Power Management”.
9. Download the “Lenovo Energy Management” (if you see this option).

Further reading

How to Fix Error 0x80070643 on Windows 10

How to Fix KB5034441 Update Not Installing on Windows 10

How to Fix KB5034123 or KB5033920 Update Not Installing on Windows 11