GoKawiilWindows' Built-In Memory Diagnostic Tool Lets Users Test RAM for Errors
Windows includes a pre-installed Memory Diagnostic utility that checks whether a computer's RAM is reliably storing and retrieving data. It works by repeatedly writing information to memory and reading it back, flagging any mismatches that suggest faulty hardware. This can help explain symptoms like crashes, freezes, and the Blue Screen of Death without needing a technician.