When you’re running a game or video on your computer, your screen suddenly goes blue and shows an error: SYSTEM SERVICE EXCEPTION (win32kbase.sys). You’re not alone. Many Windows users have experienced this issue. But don’t worry, it’s fixable. And you can try the methods below to fix it. 

Try these methods

You don’t have to try them all. Just work your way down the list until you find the one that works for you.

Method 1: Run System File Checker

Method 2: Use the DISM tool

Method 3: Update your drivers

Method 4: Perform a system restore

Method 1: Run System File Checker

The win32kbase.sys blue screen error may be caused by system file corruption. You can run System File Checker and check if there’re any system files missing or corrupted. If there are any, the sfc/scannow command (System File Checker) will repair them.

Here’s how to run System File Checker to troubleshoot your win32kbase.sys problem:

  1. Type cmd in the Windows search box.

  2. From the results, right-click Command Prompt, and select Run as administrator.

  3. Click Yes at the User Account Control prompt.

  4. At Command Prompt, type sfc /scannow and press Enter

    Note: There’s a space between sfc and /scannow.

  5. It should begin running a system scan, and will take some time. When it finishes, restart your computer and check for your win32kbase.sys problem. Or you can try Method 2, below.

Method 2: Use the DISM tool

Another tool you can use to check your system and troubleshoot your win32kbase.sys problem is DISM.exe. It can help restore corrupted system files. Here’s how to use the DISM tool:

  1. Run Command Prompt as administrator.

  2. Copy-paste the command below, then press Enter.
    DISM.exe /Online /Cleanup-image /Scanhealth
  3. If there’s any problem detected, type the command below and press Enter to help fix it.
    DISM.exe /Online /Cleanup-image /Restorehealth

    Or if you see something like this:

    try Method 3, below.

Method 3: Update your drivers

If methods 1 and 2 didn’t work for you, the most likely cause is a device driver problem. You should update your device drivers to better troubleshoot the win32kbase.sys blue screen problem.

There are two ways to update your drivers — manually and automatically.

Update your drivers manually — You can update your driver manually by going to the hardware manufacturer’s website and searching for the latest driver. But if you take this approach, be sure to choose the driver that’s compatible with the exact model number of your hardware, and your version of Windows.


Update your drivers automatically — If you don’t have the time, patience or computer skills to update your drivers manually, you can, instead, do it automatically with Driver Easy. You don’t need to know exactly what system your computer is running, you don’t need to risk downloading and installing the wrong driver, and you don’t need to worry about making a mistake when installing. Driver Easy handles it all.

  1. Download and install Driver Easy.
  2. Run Driver Easy and click Scan Now. It will scan your computer and detect any problem drivers.

  3. Click Update next to any flagged devices to automatically download the correct version of their drivers, then you can install them manually. Or click Update All to automatically download and install them all automatically. (This requires the Pro version – you’ll be prompted to upgrade when you click Update All. You get full support and a 30-day money back guarantee.)

  4. Restart your computer and see if your problem is resolved. If not, contact Driver Easy’s support team at support@drivereasy.com for further assistance. They’d be happy to help you. Or you can move on to Method 4, below.

Method 4: Perform a system restore

If the steps above didn’t work for you and your win32kbase.sys problem only occurs recently, we recommend performing a system restore on your computer. It’ll return your system files and settings to an earlier point in time when the BSOD error didn’t occur, without affecting your personal files. 

Here’s how to perform a system restore:

  1. Type recovery in the Windows search box, then press Enter.
  2. At Recovery, click Open System Restore.

  3. Select Choose a different restore point, and click Next.

  4. Check the box beside Show more restore points. You should see a list of ‘restore points’. These are like backups of your computer, as it was at that particular date and time. Think back to a date when your computer worked properly, and select a restore point from that date or slightly earlier (but no later). Then click Next.

  5. Save any open documents on your computer, then click Finish.

  6. Click Yes, and your PC will restart.

Hopefully this can help you out.

If you have any other suggestion, please feel free to leave a comment below. 

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