Ram Tester Windows 11 Jun 2026

Is Your RAM Causing Issues? How to Test Memory on Windows 11 If your Windows 11 computer is suffering from frequent Blue Screens of Death (BSOD), random freezes, or unexplained restarts, faulty RAM (Random Access Memory) is a prime suspect. Fortunately, you don’t need to be a tech expert to check your memory. This guide covers the best ways to test your RAM on Windows 11, from the built-in utility to industry-standard external tools.

Method 1: The Windows Memory Diagnostic Tool (Built-in) The easiest way to start is with the tool Microsoft includes with every copy of Windows 11. It is free, requires no installation, and is effective for basic troubleshooting. Steps to run the test:

Press the Windows Key , type Windows Memory Diagnostic , and select the result. You will see a prompt with two options. Select "Restart now and check for problems (recommended)" .

Note: Save all your work before clicking this, as your PC will reboot immediately. ram tester windows 11

Your computer will restart and load into a blue interface. The test will begin automatically in "Standard" mode. You will see a status bar at the top. If you see "Status: No problems have been detected yet," that is a good sign. The test usually takes 10–20 minutes depending on your RAM capacity.

How to see the results: Once the test completes, Windows 11 will restart automatically.

The Notification: Usually, the results appear as a notification in the notification center (bottom right corner) shortly after you log back in. The Manual Way: If you missed the notification, press Windows Key + R , type eventvwr.msc , and hit Enter. Is Your RAM Causing Issues

In the Event Viewer window, expand Windows Logs > System . On the right side, click Find (or Filter Current Log). Type MemoryDiagnostics-Results as the source. Look for an Event ID. If you see "The Windows Memory Diagnostic tested the computer's memory and detected no errors," your RAM is likely fine.

Method 2: MemTest86 (The "Gold Standard") While the Windows tool is good, it can sometimes miss subtle hardware errors. MemTest86 is widely considered the industry standard for memory testing. It runs from a USB stick outside of the Windows environment, meaning it isn't affected by the operating system's overhead. Steps to run MemTest86:

Download: Go to the PassMark Software website and download the free MemTest86 Free (ZIP file). Create a USB Drive: This guide covers the best ways to test

Insert a USB flash drive (all data on it will be wiped). Run the imageUSB tool included in the download to write MemTest86 to the USB drive.

Boot from USB: