Open the Settings window, and then select System from the left vertical menu and click on Troubleshoot from the right menu.
Click Other troubleshooters to expand all troubleshooters, and then click Run next to the Windows Update section.
If any fixes are identified, click on Apply this fix and follow the on-screen instructions.
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Type cmd in the search box on the taskbar, and then right-click the Command Prompt app and select Run as administrator.
Type sfc /scannow command in the elevated command prompt.
If the SFC scan doesn’t work, you can try running the command below in the elevated Command Prompt window.
Dism /Online /Cleanup-Image /CheckHealth
Dism /Online /Cleanup-Image /ScanHealth
Dism /Online /Cleanup-Image /RestoreHealth
Open Control Panel > Programs and Features interface, click the Turn Windows features on or off link.
Check the .NET Framework 3.5 (includes .NET 2.0 and 3.0) box. Besides, expand this item and make sure the associated boxes for Windows Communication Foundation HTTP Activation and Windows Communication Foundation Non-HTTP Activation are also selected > click OK