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?