How to Run Hardware Diagnostics on Windows 11: A Step-by-Step Guide

If your Windows 11 computer is acting up, running hardware diagnostics can help identify and fix the issue. In this guide, we’ll walk you through the steps to run hardware diagnostics on Windows 11, ensuring your PC runs smoothly.

How to Run Hardware Diagnostics on Windows 11

Running hardware diagnostics on Windows 11 can help you identify faulty hardware components like the hard drive, memory, or CPU. Here’s how you can do it step-by-step.

Step 1: Open the Start Menu

Click on the Start button located at the bottom-left corner of your screen.

The Start Menu is your gateway to finding all the apps, settings, and utilities on your system. Clicking here will give you access to search for specific tools.

Step 2: Search for “Windows Memory Diagnostic”

Type “Windows Memory Diagnostic” in the search bar and press Enter.

This built-in tool is specifically designed to check for memory issues. Once you find it, you can easily run a scan.

Step 3: Select “Restart now and check for problems”

Click on the option that says “Restart now and check for problems”.

Your computer will reboot and the Windows Memory Diagnostic tool will start running. It will check your RAM for any errors.

Step 4: Wait for the Diagnostic Tool to Complete

Allow the diagnostic tool to run its course, which may take a few minutes.

During this time, your computer will be unavailable. The tool will provide a detailed report once it’s done.

Step 5: Check the Results

After the diagnostics are complete, your computer will restart, and the results will be displayed upon logging in.

If errors are found, follow the on-screen instructions to fix them. If no issues are detected, your memory is likely not the problem.

After completing these steps, your computer will provide a diagnostic report. This will help you identify any hardware issues and suggest possible solutions.

Tips for Running Hardware Diagnostics on Windows 11

  • Backup Your Data: Always backup important files before running diagnostics.
  • Stay Patient: Diagnostics can take some time; be patient and let the tool do its job.
  • Keep Updated: Ensure your Windows 11 is up to date to avoid compatibility issues.
  • Check Connections: Sometimes, a loose connection can be mistaken for a hardware issue.
  • Consult the Manual: Refer to your PC’s manual for any hardware-specific diagnostic tools.

Frequently Asked Questions

What should I do if Windows Memory Diagnostic finds an error?

You should follow the on-screen instructions to troubleshoot or replace the faulty memory.

Can I run other diagnostics for different hardware components?

Yes, you can use tools like “CHKDSK” for the hard drive and “Device Manager” for other components.

How often should I run hardware diagnostics?

Run diagnostics if you notice performance issues or at least once every few months as a precaution.

Are there third-party diagnostic tools?

Yes, tools like “HWMonitor” and “CPU-Z” offer advanced diagnostics for different hardware components.

What happens if no issues are found but my computer is still slow?

Consider software issues like malware, or consult a professional for a more thorough check.


  1. Open the Start Menu.
  2. Search for “Windows Memory Diagnostic”.
  3. Select “Restart now and check for problems”.
  4. Wait for the Diagnostic Tool to Complete.
  5. Check the Results.


Running hardware diagnostics on Windows 11 is a straightforward process that can save you a lot of headaches. By following these steps, you can easily identify and troubleshoot potential hardware issues. Remember to backup your data before running any diagnostics and to keep your software up to date. If you’re still experiencing problems after running the diagnostics, consider using other tools or consulting a professional. Keeping your computer in good health ensures it runs smoothly and efficiently, making your life a bit easier.

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