Windows Resource could not start the repair service

Andrew Wafer
by Andrew Wafer
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  • To solve the Windows resource protection could not start the repair service you will have to enable SFC scan. Read our step by step solution below to solve the problem.
  • Windows Resource Protection protects registry keys and folders in addition to critical system files. You can find all about it in our Windows Resource Protection topic.
  • SFC (System File Checker) can repair missing or corrypted system files. Read our guide about how to use Windows File Checker
  • If you experienced any other Windows 10 errors we've got you covered. Check out our Windows 10 errors hub.
How to fix Windows Resource Protection could not start the repair service

Windows 10 is one of the most stable, secure, and smooth operating systems developed and released by Microsoft.

However, since we are discussing about a huge platform that is always under development stage, improvements are always welcomed.

But, sometimes these improvements are not rolled out as fast as we want. For this reason, many users decide to take the matter into their own hands.

So, we try to tweak built-in settings and features by using third party apps or by downloading and flashing processes which are not released by Microsoft.

Either way, we can end up in messing things up – we can damage internal files, the apps that we use can corrupt default registry, or who knows, something essential might be just erased.

Thus, problems occur and we have to find the perfect way to fix them.

Usually, the first troubleshooting process that we apply is the System File Checker or sfc.exe. This is a service featured by default within the Windows core center, located in C:WindowsSystem32 folder.

The utility performs a scan process that searches for corrupt Windows system files.

SFC (System File Checker) will also repair corruptions or system-related errors and can restore a Windows Restore Protection (WRP) package, through which your Windows 10 device can’t run properly anymore.

Good, so everything should be crystal clear for now. But, what should you do when the SFC scan isn’t working?

In most situations, if Windows Modules Installer isn’t enabled, the SFC utility will not complete the system scan, so you cannot fix the implied malfunctions.

Windows Modules Installer is a dedicated service also pre-loaded on the Windows software; this service must access WRP files and registry entries when the SFC scan is initiated.

Well, as obvious, if the service is disabled you will get a warning message or an error stating that Windows resource protection could not start the repair service.

You should now understand how the SFC scan is working and why you receive the Windows resource protection could not start the repair service Windows 10 error.

And based on the explanation above, the issues can be easily fixed by enabling Windows Modules Installer. Here is how you can achieve this fix.

How do I fix Windows resource protection error?

  1. Turn on your Windows 10 computer.
  2. From Desktop press the Win+R keyboard keys in order to bring the Run box.
  3. There enter: services.msc and click on OK.services.msc windows 10
  4. The Services window will be now displayed. From there you must double-click on Windows Modules Installer.windows module installer
  5. The general Settings panel will be launched. From there, switch to General tab.
  6. Startup type must be set to manual. If different, change the setting accordingly.
  7. Click on OK and then Apply the settings.trustedinstaller windows 10 sfc issue
  8. You can close the Service window now.
  9. Open an elevated cmd window: launch Task Manager (CTRl+Alt+Del), click on File, pick Run new Task and type ‘cmd’. Hint: make sure ‘create this task with administrative privileges’ is checked and then press OK.cmd elevated
  10. In the cmd window type sc config trustedinstaller start=demand and press Enter.
  11. Afterward, type net start trustedinstaller and press Enter.
  12. Done.

After applying the steps from above you should be able to initiate the SFC scan.

The Windows resource protection could not start the repair service error should be fixed so you can resume your troubleshoot initiative.

To start the scan, just launch the elevated command prompt window again and enter sfc /scannow (between sfc and ‘/’ there is a space).

Note: Depending on the problems or on your own Windows 10 configuration this scan might take a while; just do your work while the process is running.

If you have questions or if you need further information about the process that we just explained, don’t hesitate to contact us by using the comments area from below.

FAQ: Read more about Windows Resource Protection

  • How do I fix Windows Resource Protection?

The problem is that you cannot initiate the SFC scan. The solution is pretty complicated to explain in just a few words but we have an awesome guide that will help you solve this problem in no time.

  • What can I do if SFC scan stops?

Try to replace the corrupted files, then perform a System Restore. If you’re still in trouble, follow our complete guide on how to fix that problem.

  • How do I boot up in safe mode?

You need to use the Recovery option from Update & Security. If you can’t boot your computer to Safe Mode, use our comprehensive guide to fix that.  

Editor’s Note: This post was originally published in September 2017 and has been since revamped and updated in March 2020  for freshness, accuracy, and comprehensiveness.

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