sir, my hard disk drive is ntfs formatted. on running chkdsk it shows errors and prompts for restart .on restart chkdsk runs again and at the end shows a message that volume is clean but for confirmation when i run chkdsk again, it shows errors again.why this occurs ,my hard disk is of seagate and is barely a year old . when i run seagates hard disk diagnostics it shows that hard disk has no physical errors . please help .thanks in advance.