Thanks justinlee you got it right when i scanned it said it found corrupt file and successfully repaired them. Now i just have to monitor the behavior for some days. But i don’t know what corrupt file it repaired because when i tried to open the log file in c:\windows\logs\CBS\CBS.log it says “access denied”. Anybody knows how to open the log file.

Finally thank you everyone for your time and concern.
Have a nice day/night.