How to fix
Wmiacpi.sys BSOD
on Windows

Hello. My Windows PC crashed unexpectedly with a Blue Screen. The error message read "What failed: wmiacpi.sys". What is the reason for this crash? Any suggestions would be appreciated.

Users are quite concerned about the wmiacpi.sys Blue Screen of Death (BSOD) problem in Windows, especially when it's connected to Lenovo Vantage. Even while Lenovo Vantage is often regarded as a helpful tool for managing Lenovo devices, issues may occasionally occur. One such issue is the wmiacpi.sys blue screen of death.

Users may get an error message stating "What failed: wmiacpi.sys" when the BSOD happens. The error has several facets since it can also occur in conjunction with other bug check codes. The Blue Screen of Death (BSOD) frequently causes a system crash that forces the computer to restart quickly. Users may occasionally find themselves caught in a cycle of reboots, which exacerbates the annoyance.

Users will be significantly impacted as this problem interferes with routine computer operations, perhaps resulting in data loss and an unpleasant user experience all around. In addition to interfering with present work, the unannounced restarts might add to the system's perceived instability and unreliability.

Resolving the wmiacpi.sys BSOD problem is essential for those looking to maintain a reliable computer environment. Although Lenovo Vantage is a useful tool, there are issues over its influence with system stability. Possible fixes for this issue include configuration changes and troubleshooting procedures, both of which could need user assistance to put into practice.

In this guide, you will find 7 steps that should help you fix wmiacpi.sys BSOD in Windows. You can also run a maintenance tool like [d1] that can fix most system errors, BSODs, corrupted files, and registry issues. Otherwise, follow the step-by-step instructions below.

Solution 1. Uninstall Vantage

• Press the Windows key + R simultaneously.
• In the Run dialog that appears, type appwiz.cpl and press Enter.
• Once the Programs and Features window is open, locate Lenovo Vantage Service.
• Right-click on Lenovo Vantage Service and choose Uninstall.

• Confirm the uninstallation by clicking Yes in the confirmation dialog.
• Follow any additional instructions that may appear during the uninstallation process.
• After the uninstallation is complete, restart your computer.
• Check to see if the Blue Screen of Death issue is resolved.

Solution 2. Install Windows Updates

• Press the Windows key + R to open the Run box.
• Type ms-settings:windowsupdate in the text box and press Enter.
• Click the Check for updates button.

• If a new update is available, click the Download & Install all button.
• Restart your computer after the process is finished and check to see if the problem is fixed.

Solution 3. Update Drivers

Outdated drivers could be the cause of this issue. In this case, you can fix it automatically by using [rev id="DriverFix"], which will scan your PC for missing and out-of-date device drivers. Or you can update them manually:

• Open Settings.
• Click on Update & Security.
• Click on Windows Update.
• Click the Check for updates button.
• Click the View optional updates option.
• Click the Driver updates tab.
• Select the driver you want to update.
• Click the Download and install button.

If the View optional updates link is not available after checking for updates, then Windows Update does not have any new drivers or any updates for other products at that particular time.

Solution 4. Scan for Malware

A malware infection may be the cause of wmiacpi.sys BSOD in Windows. It is important to run a comprehensive security scan to rule out this possibility and ensure that the computer is not infected. This can help to prevent further issues with the Windows operating system and ensure that it is functioning properly.

If you have access to a security scanner, or if your organization pays for one, you can use it to scan your entire system to check for a virus infection. Otherwise, you can use Windows Defender to scan your system:

• Click on the Windows Start menu or press the Windows key on your keyboard.
• Type Microsoft Defender in the search bar and click on Microsoft Defender Antivirus to open the application.
• Click on the Virus & threat protection option in the left-hand menu.
• Click on the Quick scan or Full scan option, depending on your preference.

• If you choose Quick scan, Microsoft Defender Antivirus will scan the most vulnerable and commonly infected areas of your computer.
• If you choose Full scan, Microsoft Defender Antivirus will scan your entire computer, including all files, folders, and programs.
• Click on the Scan now button to start the selected scan type and wait for the scan to complete.
• The time it takes will depend on the size of your hard drive and the number of files being scanned.
• Once the scan is complete, you will be informed of any detected threats, and you can choose to quarantine or remove them.
• If no threats are found, Microsoft Defender Antivirus will inform you that your device is secure.

Solution 5. Fix Corrupted System Files

Use Command Prompt commands to repair system file corruption:

• Open Command Prompt as administrator
• Use the following command and press Enter:
  sfc /scannow

• Reboot your system
• If SFC returned an error, then use the following command lines, pressing Enter after each:
  DISM /Online /Cleanup-Image /CheckHealth
  DISM /Online /Cleanup-Image /ScanHealth
  DISM /Online /Cleanup-Image /RestoreHealth

Solution 6. Use System Restore

System Restore is a feature in Microsoft Windows that allows users to revert their computer's state to a previous point in time. This can be helpful if you have made changes to your system that are causing problems.

• Press the Windows key + R on your keyboard to open the Run box.
• Type SystemPropertiesProtection and press Enter.
• Go to the System Protection tab.

• You will see the System Restore… button. Click it to run System Restore.
• Follow the prompts until you can select a restore point.
• Select the one you want (ideally before the issue started occurring) and go ahead with the process.

Solution 7. Repair Install Windows

• Visit the official Microsoft website to download Windows 11 or Windows 10 Installation Media
• Run the Media Creation Tool and select Create Installation Media for another PC.
• Select your USB drive.
• Let the Process complete of writing the Installation files to the USB drive.
• Click Finish.

• On the PC you wish to upgrade, Press Windows + E to open the File Explorer.
• Open the Removable drive and click Setup.exe.
• Accept the license terms on the next screen.
• Confirm the Upgrade options – Files, apps and Settings are kept.
• Click Install, and the upgrade should start.