Resolving the ERROR_INVALID_EVENT_COUNT Bug Check 151 (0x97) in Windows

The bug check code ERROR_INVALID_EVENT_COUNT, which has the value of 0x00000097, generally signifies a problem related to the event count within a system or application. It is often accompanied by an error message stating: The number of specified semaphore events for DosMuxSemWait is incorrect.

This problem typically arises when file operations involve multiple threads or processes that are trying to access shared resources. While this Blue Screen of Death (BSoD) is rarely caused by hardware failures, it is usually the result of driver problems or conflicts between software applications.

How can I resolve the ERROR_INVALID_EVENT_COUNT BSoD?

1. Update Your Drivers

1. Right-click on the Start menu and select Device Manager.
2. Expand the various categories and look for any drivers marked with exclamation points.
3. Right-click on the relevant component and choose Update driver.
4. Choose Search automatically for drivers and wait for the system to install any updates.
5. If the warning icon still appears, visit the manufacturer’s website to download the appropriate driver for your device and operating system.

If no problematic drivers are identified, consider using a driver updater tool that can automatically scan for and update outdated drivers.

2. Utilize System File Checker (SFC) and DISM

1. Click the Start button, type cmd, then select Run as administrator to open the Command Prompt with administrative rights.
2. Input sfc /scannow and allow the process to complete.
3. Next, type DISM /Online /Cleanup-Image /RestoreHealth and wait for it to finish executing.

When facing a BSoD, running the SFC and DISM commands can be one of the most effective ways to resolve potential issues with system files.

3. Remove the Conflicting Application

1. Click on the Start button and navigate to Settings.
2. Proceed to Apps > Installed apps, and identify any applications you installed just before encountering the BSoD.
3. Select the three dots next to the problematic app and click Uninstall.
4. Restart your computer and check if the issue is resolved.

4. Execute a System Restore

1. Click the Start button, enter ‘system restore’, and select Create a restore point from the appearing options.
2. Click on the System Restore button.
3. Choose a restore point dated before the ERROR_INVALID_EVENT_COUNT error began appearing.
4. Follow the instructions to restore your system.

Returning your system to an earlier state can resolve software-related problems. If this does not rectify the issue, you may want to consider resetting Windows to its factory settings.

We trust that implementing the above solutions has helped you resolve the ERROR_INVALID_EVENT_COUNT BSoD, allowing your computer to function properly once again.

For additional insights, refer to our article discussing the causes of BSoD. If you have any inquiries, feel free to leave a comment below.

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Image Credit: Windowsreport.com