Microsoft anticipated that memory would fail, so they built a powerful diagnostic tool right into Windows. It’s called (WMD), and it works on Windows 10, Windows 11, and older versions.

Click in the right-hand panel, type MemoryDiagnostics-Results , and click Find Next .

Select to queue the test for your next manual reboot . During the test: Your PC will restart into a blue screen environment.

Here’s a concise review of on a Windows PC, covering the built-in tool, step-by-step instructions, and what to expect.

Running memory diagnostics helps identify faulty hardware causing system instability, such as the , random crashes, or file corruption. Both Windows and macOS include built-in tools to scan physical RAM for errors. Windows Memory Diagnostic

. You should run this test if you experience random crashes, Blue Screens of Death (BSOD), or sudden performance drops. How to Run Memory Diagnostics To start the process on a Windows 10 or 11 system: Open the Tool Windows Key + R mdsched.exe Select a Time Restart now : Begins the test immediately (save your work first!). Check later : Schedules the test for your next manual restart. Monitor the Scan

Review the log details in the bottom pane to see if any errors were detected. Method 2: Using MemTest86 (Advanced & Most Accurate)

Turn off the PC, unplug the power cable, open the case, and remove the RAM sticks. Blow away any dust from the slots and firmly click the sticks back into place.

The tool is a free, built-in utility that checks your computer’s RAM for errors. It’s the first step if you’re experiencing random crashes, blue screens (BSOD), file corruption, or system freezes.

: Once finished, Windows will reboot. A notification usually appears with the results.

If any diagnostic tool reports errors, it does not always mean you need to buy new components immediately. Follow these troubleshooting isolation steps: Clean and Reseat the Modules

Visit the official MemTest86 website and download the free version. Extract the downloaded ZIP file onto your computer. Plug in your USB flash drive. Run the extracted imageUSB.exe application.

Click in the right-hand pane and search for "MemoryDiagnostics-Results".

A window will appear offering two choices: restart immediately or check for problems the next time you start your computer. Step 2: Run the Test Click .

System speed degrades heavily over hours of continuous use.