I remember there was a phrase we type in 'Run box'/ command-line and insert windows CD in drive, then it scans whole system for probable errors and fix them. Would you please say it?
Or Any new similar concept maybe exists.
You might be thinking of System File Checker
SFC in XP can be problematic since it uses an installation CD to source its files if they are needed, and these may be the incorrect versions since windows updates can change system file versions, you should at least use a XP install disc that is the same Service Pack version as the XP system you are running SFC on.
Vista and W7 does not suffer from this problem, it sources the files from your current installation cache of files.