How to Fix Ntoskrnl.exe Blue Screen of Death Issue in Windows 11

This error indicates that there is a problem with the Windows operating system kernel executable file ( ntoskrnl.exe ). Without this file, Windows cannot run. If you receive this error, the following steps will help you fix ntoskrnl.exe Blue Screen of Death on Windows 11.

Check your RAM for possible errors

The first thing you should do is check the RAM integrity of your system for possible errors. You can do this using the Windows Memory Diagnostic Tool or other third-party utility.

To run a diagnostic test of RAM:

1. Click Start or press the Windows key to start "Start Menu.
2. Type memory and click Windows Memory Diagnostic App in the top results.
3. When the Memory Diagnostic Tool starts, click the Restart now and check for problems (recommended) option at the top.
4. Your PC will restart and boot into the Windows Memory Diagnostic Tool and check for problems.

If the scan detects an error, try reinstalling and swapping the RAM stick in the desktop or reinstalling the memory in the laptop if it is accessible. If you continue to experience errors, you'll need to check with your PC manufacturer - hopefully it's still under warranty.

You may want to get a second opinion, so use memetest86 and compare the test results. Memtest86 is a popular utility for testing RAM because it is free and open source.

Run SFC and DISM scans

In addition to the built-in memory diagnostic tools, you can run SFC and DISM scans to check Windows for corrupt files. Corrupt files may be the cause of ntoskrnl.exe BSOD errors. SFC and DISM scans search for corrupted system files and replace them with working files.

You can run SFC and DISM scans on Windows 11 by doing the following:

1. Right-click the Start button and select Windows Terminal (Admin) from the menu .
2. Type the following command in the terminal and press Enter.

   DISM /Online /Cleanup-Image /RestoreHealth

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3. Now, after the DISM scan is complete, check the system files by running the following command:

   sfc /scannow

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Perform Chkdsk Scan

It's also worth checking your hard drive for errors, as a faulty hard drive may prevent Windows from working properly. For example, you can use the built-in chkdsk utility to identify problems with your system drive.

Use chkdsk to check the system drive for errors:

1. Open the Start menu and enter powershell.
2. When Windows PowerShell appears, click the Run as administrator option.
3. When the terminal opens, enter the following command and press Enter.

   chkdsk /r /f

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4. The utility will prompt you to scan the next time you restart Windows 11 - type Y and press Enter.

Check for malware

If a virus or other low-quality malware resides on your system, it may interfere with system functionality. The Windows 11 security app scans for malware in real time, but it may not catch everything.

You can scan for viruses and other malware using the following steps:

1. Open the Start menu, enter windows security, and then select the top result.
2. Select Virus and Threat Protection on the left, and then click the Quick Scan button.
3. If the quick scan option doesn't find anything, run a deeper scan. Select the Scan Options link, and then select Full Scan or Microsoft Defender Offline Scan.

Please note that more in-depth scans will take longer to complete, but it will be worth it if stubborn malware is causing the BSOD error. Additionally, if Windows Security Center doesn't find anything, try a virus scan with a free and trusted security utility such as Avast or AVG AntiVirus.

Check your device drivers

Device drivers are tightly integrated in Windows, allowing them to connect correctly with your PC components. If the driver is corrupted, it may cause ntoskrnl.exe blue screen errors. Updating or reinstalling the driver may resolve this issue. However, there are so many drivers out there that it can be hard to know where to start.

If you have recently updated a device driver and are encountering errors, start with that device first. For example, if you updated your GPU driver and got an error, start with that.

You can manage drivers through Device Manager by doing the following:

1. Open Start, enter device manager, and select top result.
2. When Device Manager opens, right-click on your recently updated device. From here, you can update, uninstall, or disable the driver.

Try Clean Boot or Safe Mode

If you are struggling to diagnose this issue, you may need to clean boot into Windows 11. A clean boot will use minimal startup applications and drivers to load the operating system.

Clean boot gives you more control over the services and applications that run during startup than Safe Mode. However, the process can be tedious as you need to boot up your PC and enable apps and services one at a time.

#If you are still having problems or Windows crashes before reaching the login screen, boot Windows 11 into Safe Mode. Once in the Safe Mode environment, select Enable Safe Mode using Command Prompt and try to resolve the issue using the steps above.

Keep Your Data Safe

If you receive an ntoskrnl.exe blue screen error, don’t panic. One of the above steps should get your PC back up and running. But remember, even if you fix ntoskrnl.exe BSOD on Windows 11, your data needs to be safe before a crash event occurs.

Windows 11 includes tools to help keep your data safe. You can create restore points to roll back your system to a working state. It includes OneDrive for backing up data and syncing settings. You can also perform a full system backup to protect your system from data loss.

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