Windows 10 Defrag Not Working

What causes Windows 10 defrag not working? This issue often occurs when the Disk defragmenter service is not running properly. Besides, third-party software conflicts, corrupt system files, and hard drive errors are also the possible causes of this issue.

Fix 1. Check the Disk Defragmenter Service

First of all, you should check if the Disk Defragmenter service is set up properly. If this service is disabled, you won’t be able to run the defrag tool. Now, let’s see how to check the Disk Defragmenter service.

Step 1. Press Win + R keys to open the Run dialog box, and then type services.msc in it and hit Enter.

Step 2. Make sure the Disk Defragmenter service is set to Manual status.

Step 3. Then, make sure the following services are set to Automatic status:

  • Remote Procedure Call (RPC)
  • DCOM Server Process Launcher
  • RPC Endpoint Mapper

    Now, you can check if disk defragmenter Windows 7 not working issue has been fixed. If not, move on to the next solution.


Fix 2. Stop Other Running Applications

If you are running some third-party applications like Antivirus software in the background, the apps may interfere with Disk Defragmenter. Here you can try disabling the apps to fix the issue “defrag not working Windows 10”.

Step 1. Right-click the Taskbar at the bottom of your computer screen and select Task Manager from the context menu.

Step 2. Under the Process tab, right-click the third-party software and select End task. Then repeat this step to end all running third-party software.

Fix 3. Run System File Checker

As mentioned above, corrupt systems files can cause Windows 10 defrag not working. To fix this issue, you can try performing an SFC scan to repair it. System File Checker is a Windows system utility that’s often used to scan and repair corrupted system files.

Step 1. Type cmd in the search box on the taskbar, and then right-click the Command Prompt app and select Run as administrator.

Step 2. Type sfc /scannow command in the elevated command prompt. This process may take you much time to scan, please wait patiently.

Once this repairing process completes, you can relaunch Disk Defragmenter and see if it can work properly.

However considering you have already purchased Restoro and would like us to assist you in doing that utilizing a remote session, please contact our support and they will be happy to help you.


Revision #1
Created 2 years ago by Ghicel Santos
Updated 2 years ago by Ghicel Santos