Objective 1. What is System File Checker Tool? 2. What does sfs /scannow do? 3. How to run sfc /scannow command in Windows 10/8/7 and Windows Server What is System File Checker Tool? The sfc.exe (System File Checker) tool is preinstalled and integrated with Windows OS and you don’t need to download it from anywhere. … Continue reading How to run System File Checker sfc /scannow and fix windows problems