Windows resource protection could not start the repair service

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If you Windows Resource Protection could not start the repair service, if you click Run /scannow or System File Checker under Windows 8/7, then this message may help you.

System File Checker or sfc.exe is a utility in Microsoft Windows located in the folder C:WindowsSystem32. This utility allows users to search for and recover corrupted Windows system files.

But sometimes you get one of the following errors when running this tool – and the tool will not be able to perform or finish its job successfully.

  • Windows Resource Protection found corrupted files, but could not repair some of them
  • System File Checker does not work, does not work or could not repair them.


In this case, you can try running System File Checker in safe mode or at startup, or repair Windows component memory with DISM to see if it works, or you can troubleshoot each of them by following each link.

Windows Resource Protection could not start repair service

January 2021 Update:

We now recommend using this tool for your error. Additionally, this tool fixes common computer errors, protects you against file loss, malware, hardware failures and optimizes your PC for maximum performance. You can fix your PC problems quickly and prevent others from happening with this software:

  • Step 1 : Download PC Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista – Microsoft Gold Certified).
  • Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
  • Step 3 : Click “Repair All” to fix all issues.


If you receive this error message, try this :

Start Windows Modules Installer or TrustedInstaller service. Double-click it and make sure the service has started. If this is not the case, press the Start button . Its start type must be set to Manual.

The Windows Modules Installer or TrustedInstaller service allows you to install, modify, and remove Windows updates and optional components. If this service is disabled, the installation or uninstallation of Windows updates for this computer may fail. This service has full access to Windows resource protection files and registry keys and must be run to recover missing or corrupted system files.

Alternatively, you can open a high prompt, type the following and press Enter.

Once the service has started, start the system file checker and check if it works. If this still does not work, you may need to analyze the logs.

This article shows you how to run sfc /scannow System File Checker on external disks. See this message if you receive an error message indicating that a system repair is pending that requires a restart to complete the error message.

RECOMMENDED: Click here to troubleshoot Windows errors and optimize system performance

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