Disk Scanner is a tiny, yet a very useful freeware utility to check your hard drive for read errors. At times you must have noticed that some files on your hard disk are not being read.
There are several reasons for your data not being read, but the most common and improtant one is the hard drive degradation. This may be the first typical sign for the disk failure. So it’s always better to regularly scan your disk and notice anything suspicious, or you might loose important data.