The biggest criticism of the Windows 11 Memory Diagnostic is its propensity for false negatives. A stick of RAM can be failing (causing random crashes once a day) yet pass the Windows diagnostic test with flying colors.
Built-in tools are excellent for a "first pass" but insufficient for definitive hardware validation. windows 11 memory check
Get-WinEvent -FilterHashtable @LogName='System'; ID=19 | Select-Object TimeCreated, Message The biggest criticism of the Windows 11 Memory
Event ID 19 = “WHEA-Logger” memory corrected error — early warning of flaky RAM. ID=19 | Select-Object TimeCreated