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

Running hardware diagnostics on Windows 11 is a breeze. By following a few simple steps, you can check the health of your computer’s hardware. This process helps identify any issues so you can address them and keep your machine running smoothly. In a nutshell, you’ll be utilizing built-in tools that come with Windows 11 or downloading third-party software to run comprehensive checks. This guide will walk you through both options.

How to Run Hardware Diagnostics on Windows 11

Running hardware diagnostics on Windows 11 will help you identify any hardware issues that might be affecting your computer’s performance. These steps will guide you through the process using built-in tools and third-party software.

Step 1: Open Windows Security

First, open the Windows Security app by searching for it in the Start menu.

Opening Windows Security is your gateway to a handful of useful diagnostic tools. This app offers not just virus protection but also device health reports.

Step 2: Go to Device Performance & Health

Navigate to the "Device performance & health" tab within Windows Security.

Once you’re there, you’ll find a summary of your PC’s health. This tab will offer insights into various aspects of your hardware, such as battery life and storage capacity.

Step 3: Run Windows Memory Diagnostic Tool

Search for the Windows Memory Diagnostic tool in the Start menu, open it, and choose "Restart now and check for problems".

This tool will restart your computer and run tests on your memory (RAM) to check for errors. It’s an essential step for diagnosing memory-related issues.

Step 4: Use the Command Prompt for System File Check

Open Command Prompt as an administrator, type "sfc /scannow", and press Enter.

Running this command will check for any corrupted system files, which could indirectly point to hardware problems. The process might take some time, so be patient.

Step 5: Download Third-Party Diagnostic Tools

For a more comprehensive check, download and install third-party diagnostic software like HWMonitor or CrystalDiskInfo.

These tools offer deeper insights into your hardware’s health, including temperature readings, voltage levels, and disk health. They are user-friendly and provide detailed reports.

After you’ve completed these steps, your computer will either reboot automatically or show diagnostic results. You’ll get a clear idea of any existing hardware issues and can take appropriate actions, like replacing faulty components or updating drivers.

Tips for Running Hardware Diagnostics on Windows 11

  • Regularly Check Device Performance: Regularly check your Device Performance & Health to catch issues early.
  • Keep Software Updated: Always keep your diagnostic tools up to date for the most accurate results.
  • Run Diagnostics After Hardware Changes: If you’ve recently added new hardware, run diagnostics to ensure everything is working well.
  • Use Comprehensive Tools: Consider using both built-in and third-party tools for a thorough check.
  • Pay Attention to Symptoms: If your PC is slow or crashes often, don’t ignore it. Running diagnostics can help identify the root cause.

Frequently Asked Questions

How often should I run hardware diagnostics on Windows 11?

Running diagnostics every few months is a good practice. However, if your computer shows signs of trouble, run them immediately.

Can I use third-party tools for diagnostics?

Yes, third-party tools like HWMonitor and CrystalDiskInfo provide more detailed reports than built-in tools.

What should I do if the diagnostics find an issue?

If an issue is found, look up the specific error message for troubleshooting steps. You may need to replace faulty hardware or update drivers.

Will running diagnostics slow down my computer?

Diagnostics do require some system resources, so it’s best to run them during a time when you don’t need to use your computer intensively.

Are the built-in tools in Windows 11 enough?

Built-in tools are quite effective for basic diagnostics, but third-party tools can offer more comprehensive insights.


  1. Open Windows Security.
  2. Go to Device Performance & Health.
  3. Run Windows Memory Diagnostic Tool.
  4. Use the Command Prompt for System File Check.
  5. Download Third-Party Diagnostic Tools.


Running hardware diagnostics on Windows 11 isn’t just for tech geeks or IT professionals. With built-in tools and easily accessible third-party software, anyone can keep their computer in tip-top shape. By regularly checking on your hardware, you can catch potential problems before they become costly repairs. Whether you’re experiencing slow performance, frequent crashes, or just want to make sure everything is running smoothly, these diagnostic steps will guide you through the process.

In today’s digital age, maintaining your computer’s health is as crucial as taking care of your own. So, take a few minutes to run these diagnostics and ensure your machine runs like a well-oiled engine. For more in-depth reading, you might want to check out Microsoft’s official documentation on hardware diagnostics or explore user forums for personal experiences and tips.

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