Did it happen to you that your computer failed to boot properly or after boot it flashed some warning message saying that your computer is missing some system file ?
How To Use System File Checker To Fix Missing Windows System File
In the command prompt window, type sfc /scannow as a command and press “Enter”. It will start system scan and you can see the progress right inside the command prompt window, as shown below:
2. When the system scan is complete, you will see which of the system files were corrupted and the reasons behind the malfunction.
How to solve the problem if SFC tool fails to replace corrupted file
3. Go to C –> Windows –> System 32 folder and open a file sfcdetails.txt. It is a log file that contains entries for a file that could not be repaired by SFC.exe tool. Note down the file name and the location of file.
7. Note the location of the duplicate file. You have to copy this file to the missing file location.