When you perform the System File Checker (Sfc.exe) via the /scannow parameter to restore missing or damage PC files, then a sudden ‘Windows Resource Protection could not start the repair service’ error may occur in front of your screen. This occurs if the TrustedInstaller (Windows Modules Installer) service is turned off. The TrustedInstaller service has full access to Windows Resource Protection (WRP) files and registry keys. This service requires performing in sort to restore missing or damaged WRP resources. The TrustedInstaller service starts on-demand when performing the System File Checker. If you would like to fix this error, then pursue this blog.
Launch System File Checker Scan in Safe Mode
To launch the system file checker scan in safe mode, pursue these on-screen steps given below:
- Go to the Windows icon and right-click on it.
- After that, select the Settings option.
- You should reach the ‘Update & Security’ and select it.
- Navigate to the screen’s left side and choose the ‘Recovery’ option.
- Reach the right side of the screen and move down until you get ‘Advanced startup.’
- Later, hit the Restart now button.
- After rebooting the system, pick the Troubleshoot option.
- Go to the ‘Advanced Settings’ option and click on it.
- Select the ‘Startup Settings’ option and then choose Restart.
- In the ‘Startup Settings’ screen, hit the F5 or 5 keys to access the ‘Safe Mode with Networking.’
After accessing in Safe Mode, do to pursuing steps:
- Launch the Run accessory by pressing the Win and R combinations over the keyboard.
- Then insert ‘cmd’ in and hit the Enter key to invoke the Command Prompt.
- Once it invokes, right-click on it, then pick Run as an Administrator.
- After that, input ‘sfc /scannow’ in it and once blink the cursor.
- Later, press the Enter button and wait to finish the command.
- Now, reboot the Windows system.
Run DISM Utility
To run DISM utility, pursue these on-screen steps given below:
- Launch the Run accessory by pressing the Win and R combinations over the keyboard.
- Thereafter, insert ‘cmd’ into it and hit the Enter key to open the Command Prompt.
- Once it invokes, make sure it’s run as administrator.
- Now, continuously, insert ‘DISM /Online /Cleanup-Image /RestoreHealth’ and hit the Enter key.
- Later, wait to finish the process.
- Finally, reboot the PC and check whether the issue is continuing.
Activate the Windows Modules Installer Service (TrustedInstaller)
To activate the Windows modules installer service (TrustedInstaller), pursue these on-screen steps given below:
- Launch the Run accessory by pressing the Win and R combinations over the keyboard.
- Afterward, input “services.msc” in it and select the OK button to open the Services screen.
- Go via the whole menu of services and find the option of ‘Windows Modules Installer (or TrustedInstaller).’
- You should choose the services, and right-click on them then pick Properties.
- Later, select the Manual option as the Startup type, whether it’s not the standard settings already.
- Now, apply the changes, hit the button of Apply.
Update the Windows PC
To update the Windows PC, pursue these on-screen steps given below:
- Reach the Windows Search bar on your system.
- Then type ‘cmd’ in it and press the Enter button to invoke the Command Prompt.
- After invoking, right-click on it, then choose Run as administrator.
- Later, input ‘wuauclt.exe /updatenow’ into it once blink the cursor.
- You should press the Enter key and wait to finish the process.
- Now, permit the command to perform for about one hour.
- Finally, reboot the PC and check whether the issue is fixed.
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Source: How to Fix Windows Resource Protection Could Not Start the Repair Service?
