Windows Memory Diagnostic (mdsched.exe)

The diagnostic tool does not provide real-time granular data within the boot environment; it displays only a simple status bar and a "Status: No problems have been detected yet" message.

Test individual sticks: If you have two sticks of RAM, run the diagnostic with only one plugged in at a time. This helps you identify exactly which stick is broken. windows memory diagnostic (mdsched.exe)

The tool automatically runs a "Standard" test suite by default, which includes: The diagnostic tool does not provide real-time granular

mdsched.exe is an essential, built-in utility for system administrators and end-users troubleshooting hardware stability. Its integration into the Windows Event Log and zero-cost availability make it the most accessible tool for diagnosing RAM failure. However, for enterprise-level hardware forensics or precise identification of failing modules, it is recommended to use mdsched.exe as a preliminary screening tool, followed by physical isolation testing or specialized third-party software if errors are detected. The tool automatically runs a "Standard" test suite