If your Windows 11 PC is acting slow or crashing unexpectedly, it might be due to memory problems. Diagnosing these issues early can save you from data loss and improve system stability.
Windows 11 includes a built-in tool called the Memory Diagnostic Tool that helps identify memory errors effectively. Using this tool is straightforward and requires no additional software.
This guide will walk you through each step of using the Memory Diagnostic Tool to check and fix memory-related problems on your computer. No technical experience is needed—just follow along carefully.
By the end, you’ll know how to run a memory test and understand what to do with the results to keep your PC running smoothly.
Quick Note Before You Begin
- Save Your Work: Running the Memory Diagnostic Tool requires restarting your PC. Make sure to save all files and close applications before starting.
- Time Needed: The memory test can take anywhere from a few minutes to over an hour depending on your memory size. Be patient and avoid interrupting the process.
- Backup Important Data: If you suspect serious memory issues, backing up your data beforehand is a good precaution.
- Check for Updates: Ensure your Windows 11 is up to date, as updates can sometimes fix memory-related bugs without needing diagnostics.
Step-by-Step Guide to Using Windows 11 Memory Diagnostic Tool
Step 1: Open the Memory Diagnostic Tool
Click on the Start button or press the Windows key on your keyboard.
Type Windows Memory Diagnostic in the search bar. You will see the tool appear in the results.
Click on Windows Memory Diagnostic to open the application.
Step 2: Choose How to Run the Test
After opening the tool, you will see two options:
- Restart now and check for problems (recommended) – This option will immediately restart your PC and begin the memory test.
- Check for problems the next time I start my computer – This option will schedule the memory test to run the next time you restart your PC.
Select the first option to start the test immediately. Remember, your PC will reboot automatically, so save all work before proceeding.
Step 3: Wait for the Memory Test to Complete
Once your PC restarts, the Windows Memory Diagnostic Tool will start running automatically.
The screen will display the progress and status of the test. It will check your RAM for errors using different passes.
This process can take some time depending on your system’s RAM size and speed. Avoid turning off your PC during this test.
Step 4: Review the Test Results
After the test finishes, your PC will restart again and boot into Windows.
Once logged in, the tool will show a notification with the test results if any memory errors were detected.
If you don’t see any notification, you can manually check the results by following these steps:
- Press
Windows + Xand select Event Viewer. - In Event Viewer, navigate to Windows Logs > System.
- Look for entries with the source
MemoryDiagnostics-Results. - Click on the latest entry to see detailed results.
Step 5: Take Action Based on Results
If the tool finds no errors, your memory is likely fine, and you can rule out RAM as the cause of your issues.
If errors are detected, consider the following steps:
- Reseat the RAM: Turn off your PC, unplug it, and carefully remove and reinsert the RAM modules to ensure good contact.
- Test RAM Modules Individually: If you have multiple RAM sticks, test them one by one to identify the faulty module.
- Replace Faulty RAM: If errors persist on a particular module, replacing it is usually necessary.
- Contact Support: If unsure, consult your PC manufacturer or a professional technician.
Alternative Methods and Advanced Options
Run Memory Diagnostic from Command Prompt
If you prefer using the command line, you can start the memory test by following these steps:
- Press
Windows + Rto open the Run dialog. - Type
mdsched.exeand press Enter. - Choose the restart option as explained earlier.
Using Third-Party Memory Testing Tools
For more in-depth testing, tools like MemTest86 offer advanced features. These require creating a bootable USB drive and running tests outside of Windows.
This approach is recommended if the built-in tool does not detect problems but you still experience issues.
Frequently Asked Questions (FAQs)
How often should I use the Memory Diagnostic Tool?
Run the tool whenever you experience random crashes, freezes, or blue screens related to memory. There is no need for regular scheduled checks unless you suspect a problem.
Will the test delete my files?
No, the Memory Diagnostic Tool only checks your RAM and does not affect your data or installed software.
What if the test shows errors but my PC works fine?
Some minor memory errors might not cause immediate problems, but it is best to monitor your system or replace faulty RAM to avoid future issues.
Can I stop the test once it starts?
It is not recommended to interrupt the test as this can cause system instability. Wait for it to finish completely.
What if my PC doesn’t restart after selecting the test?
Try scheduling the test for the next restart instead of immediate reboot. If problems persist, check for Windows updates or hardware issues.
When Nothing Works
If the Windows Memory Diagnostic Tool and other troubleshooting steps do not resolve your memory issues, consider the following:
- Contact Microsoft Support: Visit Microsoft Support for official help and guidance.
- Consult a Professional Technician: Hardware problems sometimes require expert repair or replacement.
- Check Your Warranty: If your PC or RAM is under warranty, contact the manufacturer for possible replacement.
Conclusion
Using the Windows 11 Memory Diagnostic Tool is a simple yet effective way to identify and fix memory errors that can cause system instability. By following this step-by-step guide, you can confidently run memory tests, understand the results, and take appropriate actions.
Regularly checking your PC’s memory health helps maintain smooth performance and prevents unexpected crashes. Remember to save your work before testing and be patient while the tool runs its diagnostics.
With the information provided here, you are well-equipped to troubleshoot memory problems on your Windows 11 computer.