Windows disk check finding bad sectors on a fairly new hard drive

I bought 10 Lenovo N200 laptops in March this year. I have been during a routine maintenance on the laptops (windows update, defrag, disk check etc) and have found that when I ran the windows disk check on two of the laptops it reported bad sectors on the hard drive. The exact message was "adding 1 bad clusters to the bad clusters file" and then lower down it reports 4KB in bad sectors.

I called Lenovo to try and get the drives swapped but they wouldn't do anything until I had run their PC Doctor program. However, when I ran the extended test on this it reported no errors. I also downloaded the Fujitsu drive checker for the hard drive, ran the extended test which includes a surface scan and this also reported no errors.

So, does anybody know if the disk checker in windows is reliable or is it just more comprehensive then the other 2 i have used?

Also, can anybody recommend any free or low priced 3rd party tools that I can use to check for bad sectors?
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chilternPCConnect With a Mentor Commented:
chkdsk will locate bad sectors and store them in a file so they can't be used.
this is quite normal for a disc to have a few bad sectors.
so running any new disc checkers will not find any problems as the problems have been moved out of harms way.
4k is within manufacturers limits
ExcelGuideConnect With a Mentor ConsultantCommented:
you really really should try:
HDD Regenerator 1.41

This program also fixes the bad sectors as the author quotes:
"HDD Regenerator is unique software program for regeneration of physically damaged hard disk drives. It does not hide bad sectors, it really restores them!"

But you could also check with:

good luck
nobusConnect With a Mentor Commented:
one of the best tools i know is spinrite :
not only will it test your disk thoroughly, it can also be used to rewrite all info on the disk, without destroying anything
metamaticAuthor Commented:
Cheers guys. Sorry about the delay - I forgot all about this question!
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