Windows Defender Update Allegedly Breaking Down sfc /scannow on Windows 10
A number of Windows 10 users are reporting that fixing corrupted files with sfc /scannow no longer works, and the culprit appears to be an update that Microsoft shipped for Windows Defender.
While initiating a scan with the Windows System File Checker built-in tool in Windows 10 seems to be working as expected, the process eventually fails with the following message displayed in the Command Prompt window used to launch it:
“Windows Resource Protection found corrupt files but was unable to fix some of them. For online repairs, details are included in the CBS log file located at windirLogsCBSCBS.log. For example C:WindowsLogsCBSCBS.log. For offline repairs, details are included in the log file provided by the /OFFLOGFILE flag.”