• Stuck with the Windows Memory Diagnostic Tool is a common problem with the WMD tool.
  • You can usually solve the problem by letting the computer run the test overnight.
  • Restarting the system in clean boot mode can also be helpful if the Windows Memory Diagnostics is taking too long.
  • If the WMD tool crashes at 0%, try other third-party open source memory testing tools to check for memory errors.

Windows memory diagnostic tool stuck

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Windows 10 and earlier systems come with a Windows memory diagnostic tool to check and test RAM. When it boots up, it will check your RAM for problems while you work on your system.

Unfortunately, some users have reported that the Windows Memory Diagnostic Tool has problems after running the tool.

How long does a Windows Memory Diagnostic take?

The Windows Memory Diagnostic Tool in extended mode can take 15 minutes to more than 20 hours depending on the size of the RAM.

When used in extended mode, the Windows Memory Diagnostics may take a few hours to complete the testing process. The application has also been known to hang for hours at a 1% and 21% progression.

However, if the tool is stuck for a whole day or more than 10 hours, then this problem could be due to a system error.

In this article, we have listed some troubleshooting steps to help you fix Windows Memory Diagnostic Tool stuck / stuck issue on your Windows system.

How can I fix the Windows Memory Diagnostic stuck problem?

1. Wait for the tool to complete the process

Windows memory diagnostic tool stuck

In extended mode, the Windows Memory Diagnostic Tool may take more than 8 hours to complete. Sometimes the tool can get stuck for hours at a progression of 21%, 88%, 89% and 90%. You may also not see any progress for more than 4 hours.

However, this is normal with the Windows Memory Diagnostics. Unless the tool is locked at 21% for a whole day, you can leave the tool running for a few hours and let the process complete without any interruption.

If the tool is stuck for more than a day without any progress, you can try other troubleshooting steps listed in this article.

2. Run the tool after performing a clean boot

Windows memory diagnostic tool stuck

  1. Press Windows Key + R to open Run.
  2. Type msconfig.msc and click OK. This will open the System Settings window.
  3. In the System Configuration window, open the Services tab.
  4. Check the Hide all Microsoft services box. This will hide all Microsoft Windows services that the system needs.
  5. Then click the Disable All button.
  6. Click Apply to save the changes.
  7. Right click on the taskbar and select Task Manager.
  8. In the Task Manager, open the Startup tab.

Windows memory diagnostic tool stuck

9. Select all services one by one and click the Disable button. Make sure you have disabled all services on                     the Home tab.
10. Close Task Manager and click OK in the System Configuration window.
11. Restart your computer.
12 .Your system will boot into clean boot mode.
13 .Run the Windows Memory Diagnostic Tool again and check if the problem is solved.
If third-party software is preventing the Windows Memory Diagnostic Tool from completing the test, it would help to run the tool in clean boot mode. In clean boot mode, Windows starts with a minimal set of startup programs and drivers, so you can determine if a background program is interfering with other programs.

3. Test with MemTest86

Windows memory diagnostic tool stuck
  1. Make sure you have a working USB drive to use as a bootable drive. Make sure the disk is blank, such as:
  2. Download MemTest86 from the website.
  3. Right-click on the downloaded folder and select Extract All.
  4. Click Extract.
  5. Connect your USB drive to the computer.
  6. From the recently extracted folder, run the imageUSB.exe file.
  7. Make sure your connected drive is detected in the ImageUSB window and click the Write button.
  8. When you are done, click the Exit button to close the ImageUSB tool.
  9. Then turn off your computer. Insert the USB flash and reboot the system.

In most cases, the utility will run automatically after reboot. If your system does not boot from the USB flash drive, change the boot priority by changing the BIOS settings.

By using Memtest86, you can determine whether the problem is with your RAM or with the Windows Memory Diagnostic Tool. If the test completes without errors, run the diagnostic tool again to check for any improvements.

It is common for the Windows memory diagnostic tool to freeze for hours at 21% or 29% without any progression. However, if the utility crashes for more than 20 hours, try these troubleshooting tips to resolve the issue.

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