Test In Windows - Memory

Look for . The "General" tab will state if memory errors were detected or not. 4. Next Steps if Errors are Found

You can open the tool using several methods across Windows 10 and 11:

: Go to Settings > System > Troubleshoot > Other troubleshooters and look for the tool there. Once the tool opens, you will be given two choices: memory test in windows

Paid version required for advanced features (e.g., bit fade, automated re-test). Free version is limited to 4 passes.

| Feature | WMDT (Windows) | MemTest86 (UEFI) | HCI MemTest (Windows) | |-----------------------------|----------------|------------------|------------------------| | Tests all physical RAM | Yes (except BIOS reserved) | Yes | No (~90% max) | | OS dependency | Minimal NT kernel | None | Full Windows | | Row hammer detection | No | Yes (Pro) | No | | Bit fade (long-term) | No | Yes (Pro) | No | | Logging persistence | Event log only | USB/TXT/HTML | Log file | | Error address mapping | No | Yes | Partial | | Best for | Quick sanity check | Definitive validation | Thermal/intermittent | Look for

After your PC restarts, it will enter a blue diagnostic environment before Windows loads. You cannot use your PC during this time.

UEFI-bootable, 64-bit, multiprocessor support. Runs without any OS. Next Steps if Errors are Found You can

WMDT ( MdSched.exe ) is a boot-time diagnostic. It runs outside Windows (in a minimal NT kernel environment) to obtain unfettered access to all physical RAM.