How To Fix Bugcheck 0x0000009f Error In Windows 11

Bugcheck 0x0000009f, also known as DRIVER_POWER_STATE_FAILURE, is a common error that Windows users may encounter. This error usually occurs when there is a problem with the power state transition between a device and the system. If you’re facing this issue in Windows 11, don’t worry. 

In this article, we will guide you through the process of fixing the Bugcheck 0x0000009f error using simple and effective methods and provide you with additional tips.

How Do I Fix Bugcheck 0x0000009f on Windows 11?

Bugcheck errors can be resolved in various ways. Before going through detailed methods, we suggest you do these quick steps:

• Restart your PC.
• Check for Windows Updates.

After these quick steps, follow the methods mentioned below to fix the error you are encountering.

1. Update Device Drivers:

Outdated or incompatible device drivers can often cause Bugcheck errors. To update your device drivers in Windows 11, follow these steps:

1.1 Update Manually:

1. Press the Win+X key and select Device Manager from the menu.
   
2. Expand the categories and right-click on the device that might be causing the error.
3. Select Update driver.
   
4. Then choose the option to Search automatically for drivers software.
   
5. Windows will scan for the latest drivers online and install them if available.

Repeat the process for other devices if necessary.

1.2 Update Using Third-Party Application:

If you want to update your drivers automatically, then follow these steps:

1. Download a tool like Driver Booster. 
2. Install it on your PC. 
3. Open it. 
4. Click on the Scan button.
   
5. Mark the driver you want to update and click on Update Now. 
6. After that, restart your PC.

To learn in more detail, check out this guide on how to update drivers effectively.

If necessary, check out this Driver Booster review. You also can have a look at these best driver updating tools.

2. Roll back the driver:

To roll back a driver in, follow these steps:

1. Open the Device Manager like before
2. Right-click on the device driver and select Properties from the context menu.
   
3. Then navigate to the Driver tab.
4. Click on the Roll Back Driver button. 
   

[ Note:  If the button is grayed out, it means that there is no previous driver version available to roll back to ]

5. Windows will ask you to confirm the action. Select a reason for rolling back the driver, and click on Yes to proceed.
6. The system will initiate the rollback process, which may take a few moments to complete.
7. Once the rollback is finished, restart your computer to apply the changes.

Keep in mind that not all drivers can be rolled back, as it depends on the driver’s availability and the specific device.

3. Disable Power-Saving Features:

Certain power-saving features like sleep mode or hibernation can interfere with the proper functioning of devices, leading to Bugcheck errors. To disable these features:

1. Press the Win+X key and select Power Options from the menu.
   
2. Then expand the Screen and Sleep option.
3. Click on Put my device to sleep after in the Screen and sleep tab.
   
4. Now set Sleep after to Never.
   

4. Run the Windows Memory Diagnostic Tool:

Faulty RAM can also cause Bugcheck errors. To check for memory-related issues, you can use the built-in Windows Memory Diagnostic tool:

1. Press the Win+R key to open the Run dialog box.
2. Type the following command and press Enter: mdsched.exe
   
3. Choose the option Restart now and check for problems; your computer will check for issues.
   
4. Windows will run a memory test during the restart process.

After the test is complete, your computer will automatically boot into Windows.

5. Perform a System Restore:

If the Bugcheck 0x0000009f error started occurring after a recent software installation or system change, performing a system restore can help revert your computer to a previous working state.

1. Press the Win+X key and select System from the menu.
   
2. Click on System protection in the middle.
   
3. In the System Properties window, click on System Restore.
   
4. Follow the on-screen instructions to select a restore point before the error occurred.
5. Confirm your selection and let the system restore process complete.
6. After the system restarts, check if the error persists.

Remember to back up your important files before performing a system restore.

Extra Steps:

If the above methods don’t work for you, try these additional steps:

• Run the DISM Tool and System File Checker.
• Perform a Clean Boot.
• Check for Hardware Issues.
• If you’re experiencing Bugcheck 0x0000009f after installing a new driver, try uninstalling it and then reinstalling it.
• When this error occurs after updating Windows, try rolling back the update.
• If this error is for any specific device, try updating the driver for that device.
• You can try creating a new user account and see if the problem persists if you’re still having problems.

To get more tips, learn how to fix Driver Power State Failure.

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Bugcheck 0x0000009f can be frustrating, but by following the steps outlined in this guide, you can effectively troubleshoot and fix the issue in Windows 11. Remember to keep your device drivers and operating system updated regularly and perform regular maintenance to ensure the smooth functioning of your computer. If the problem persists, you may need to seek further assistance from Microsoft support or a qualified technician.