For Mac instructions, visit Apple's Using Apple Hardware Test guide.

Windows includes a Memory (RAM) Diagnostic Tool that performs a scan of your computer's physical memory and helps identify possible errors. Using this tool requires a reboot. Be sure to save any open documents.

  1. Open the Control Panel.
  2. In the search field, type Diagnose Memory.
  3. Select Diagnose Your Computers Memory Problems.
  4. Choose Restart now and check for problems (recommended).
    Note: You cannot use your mouse in the Memory Diagnostic Tool.

Your computer will reboot into the Memory Diagnostic Tool. Once the tool comes up, it will run a basic memory test.

  1. Press F1 to stop the basic test and go into the Options screen.
  2. Use the down arrow to select Extended.
  3. Press F10.
  4. Once the Memory Diagnostic Tool completes, make note of any errors reported.
  5. Hit Esc to exit the tool and boot into Windows.