SQL Server 2012 - The application has failed to start because its side-biy-side configuration is incorrect
Open an elevated command prompt (Run As Admin)
Type sfc /scannow


The sfc /scannow command will scan all protected system files, and replace corrupted files with a cached copy that is located in a compressed folder at %WinDir%\System32\dllcache. The %WinDir% placeholder represents the Windows operating system folder.