How To Test RAM On Your Windows PC?


Random Access Memory (RAM) is a crucial component of your Windows PC, responsible for temporarily storing data that your computer’s processor can quickly access. Over time, RAM can develop faults or errors, leading to system instability and performance issues. To ensure your PC’s optimal functionality, it’s essential to regularly test your RAM. In this article, we’ll guide you through the process of testing RAM on your Windows PC.

Built-in Windows Memory Diagnostic Tool

Windows comes equipped with a built-in tool called Windows Memory Diagnostic that can help you identify potential RAM issues.

  • Press the Windows key + R to open the Run dialog.
  • Type mdsched.exe and press Enter to launch the Windows Memory Diagnostic tool.
  • Choose between restarting your computer now and checking for problems or scheduling the tool to run the next time your PC starts.
  • The tool will perform a thorough scan of your RAM and display the results upon completion.


  1. MemTest86 is a powerful third-party tool designed specifically for testing RAM. It is available in both free and paid versions.
    • Visit the MemTest86 official website ( and download the free edition.
    • Create a bootable USB drive using the provided tool or burn the ISO file to a CD/DVD.
    • Restart your computer with the USB drive or CD/DVD inserted.
    • MemTest86 will automatically start testing your RAM, and you can leave it running for several passes to ensure a comprehensive check.

Windows Memory Diagnostic via Command Prompt

If you prefer using the command line, you can initiate the Windows Memory Diagnostic tool through Command Prompt.

  • Open Command Prompt with administrative privileges by right-clicking on the Start button and selecting “Command Prompt (Admin)”.
  • Type mdsched.exe and press Enter.
  • Follow the on-screen instructions to restart your computer and perform the memory test

RAM Test in Windows PowerShell

PowerShell also offers a command for memory testing.

  • Open PowerShell with administrative privileges.
  • Type Test-ComputerMemory and press Enter.
  • PowerShell will conduct a RAM test and display the results

Check Windows Event Viewer for Memory-Related Errors

  1. The Windows Event Viewer logs can provide insights into memory-related issues.
    • Open Event Viewer by pressing Windows key + X and selecting “Event Viewer”.
    • Navigate to “Windows Logs” > “System”.
    • Look for events with “MemoryDiagnostics-Results” as the source.


Regularly testing your RAM is a crucial step in maintaining the health and performance of your Windows PC. Whether using built-in tools like Windows Memory Diagnostic or third-party options like MemTest86, these methods will help you identify and address potential RAM issues before they cause serious problems. By incorporating these practices into your routine maintenance, you can ensure a smoother and more reliable computing experience.