Since the tool requires exclusive access to your RAM, it cannot run while Windows is fully loaded and must be scheduled during a system reboot. How to Use Windows Memory Diagnostic | Microsoft Surface
: Press Win + R , type mdsched.exe , and hit Enter . Choose Your Option : windows 11 memory diagnostic tool
| | Rating | Comments | |---------------------------|------------|---------------| | Ease of use | ⭐⭐⭐⭐⭐ | Simple, GUI-driven, no setup. | | Detection accuracy | ⭐⭐⭐⭐ | Reliable for moderate to severe faults; misses intermittent errors. | | Test coverage | ⭐⭐⭐ | Limited compared to MemTest86 (e.g., no rowhammer test). | | Reporting clarity | ⭐⭐ | Minimal detail; no sector/address info. | | Boot-time execution | ⭐⭐⭐⭐ | Isolated OS environment reduces false positives. | Since the tool requires exclusive access to your
: This schedules the test for your next manual restart. | | Detection accuracy | ⭐⭐⭐⭐ | Reliable