dhaniboy :
iknowhowtofixit :
Get a new hard drive or submit it for warranty/repair
but why is that, after several minutes it doesnt detect any errors? and says that the condition is perfect?
S.M.A.R.T. doesn't suddenly stop detecting errors on a hard drive. Many of the tests on S.M.A.R.T. are counters, so if it detects an error, you get a 1. If it detects that error again, 2 and so on. If you are getting inconsistent S.M.A.R.T. data reads, the tool you are using isn't working correctly or the hard drive is screwed up. Either way, I wouldn't trust a hard drive with errors.