my partition wizard (minitool) has a surface error

[nfsworldpinoy]

i scanned my partition for surface error and there are 4 errors, therefore i cannot move/resize, actually i can make unallocated space but i cant add it to another partition

how do i fix this error, what is this error virus?, what software do i need to fix this error
does this only need defragging to fix these errors

 

[gregrocker]

Rightclick on each partition to Check File System, then check again for Surface Errors.

They may be reparable using the HD maker's HD Diagnostic extended CD scan, followed by Disk Check.

If it confirms bad sectors which will not repair, replace the HD.