How to repair windows 10 corrupted operatying sytem files

Run these Windows 10 repair commands when you suspect your operating system is unstable or has corrupted functions. 1) Windows integrity check and fix: sfc /scannow a) Right click Start and click Run b) Type cmd and click OK - you can also type CMD in the windows search box and open it as administrator by right clicking it c) Type sfc /scannow in the command prompt and hit enter 2) Windows Health Restore: DISM /Online /Cleanup-Image /RestoreHealth a) Right click Start and click Run b) Type Powershell and click OK - you can also type powershell in the windows searchbox and open it as administrator by right clicking it c) In powershell, type DISM /Online /Cleanup-Image /RestoreHealth and hit enter. Note: this will take long time to download and update Windows System Files Note: If your Windows update is corrupted or don't have access to the internet, use Dism /Online /Cleanup-Image /RestoreHealth /Source:wim:d:sourcesinstall.wim:1 where source is the drive of your Windows installation image.