CompTIA A+ Core 2 (220-1202)Operating SystemsMedium

A user reports that their Windows 11 computer is experiencing frequent system crashes and blue screen errors. A technician suspects a memory issue. Which Windows command-line utility can be used to check the system's RAM for errors?

  1. Asfc
  2. Bchkdsk
  3. Cmemtest
  4. Dmdsched.exe
Show answer & explanation

Correct answer: D. mdsched.exe

mdsched.exe (Windows Memory Diagnostic) is the built-in Windows tool specifically designed to check the system's RAM for errors. It reboots the computer and runs a series of memory tests.

Why the other options are wrong

  • A. sfc (System File Checker) is used to scan and restore corrupted Windows system files, not to check RAM.
  • B. chkdsk (Check Disk) is used to check and repair errors on a disk volume, not RAM.
  • C. memtest is a common third-party memory testing tool, but not a built-in Windows command-line utility.

mdsched.exe

The command-line executable for the Windows Memory Diagnostic tool, used to check for errors in the computer's Random Access Memory (RAM).

  • Requires a system reboot to run.
  • Performs various memory tests.
  • Can identify hardware-level memory issues.

Memory trick: MD stands for Medical Doctor, and they CHECK your health (memory).

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