How: To Run Memory Diagnostics

MemTest86 runs outside of any operating system on a bootable USB drive. It uses dozens of advanced algorithms to stress every single capacitor and transistor in your RAM. This is the tool that PC repair shops and motherboard manufacturers use.

To run memory diagnostics on Windows, use the built-in Windows Memory Diagnostic

Your PC will reboot and boot directly into the blue Windows Memory Diagnostic screen. The test will run automatically. You will see a progress bar and a "Status" field that usually says "Running test pass 1 of 2..." how to run memory diagnostics

Windows includes a native utility called mdsched.exe that scans your RAM for errors before the operating system fully loads.

Recommendation: If results show errors, run a more comprehensive bootable tool (MemTest86) for confirmation. MemTest86 runs outside of any operating system on

: Your computer stops responding during high-load tasks (like gaming or video editing).

Pro Tip: Press to change options. The "Extended" test is more thorough but takes significantly longer. To run memory diagnostics on Windows, use the

Restart your PC and enter your BIOS/UEFI (usually by tapping F2, F12, or Del during startup). Set the USB drive as the primary boot device.