|Test the hard drive to see if it has failed. Using a working PC, download SeaTools for DOS from here: http://www.seagate.com/support/down...|
Now install IMGBurn: http://www.filehippo.com/download_i...
Use IMGBurn to create a CD from the SeaTools for DOS ISO file.
Boot your faulty PC from that CD and SeaTools will open.
Select the drive you want to test, then choose "Long/Extended Test".