SFC cannot repair some files, and Windows is slow

[rajsekhar195]

hi aura.....i have installed new os win 7 ultimate before 2 days only...but system is taking so much time to load windows..i have run a sfc/scannow in cmd..it had shown the result like this.."Windows Resource Protection found corrupt files but was unable to fix some of them.
Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For example
C:\Windows\Logs\CBS\CBS.log"..