Complete Guide::::
step 1 : Download Hiren’s Boot CD image from here
step 2 : Once downloaded Burn it to disc or make a bootable usb
step 3 : When you finish burning the disk /making usb bootable we need to boot from it, by inserting
the disk in the CD/DVD Drive/ usb in hub and re-start the computer.
step 4 : In the re-start process you will see a message Press any key to boot from usb/CD. Tap the
Enter Key on your key board. If you don’t see this message then you need to change the boot
sequence.
step 5 : Select the option “DOS programs” from the Hiren’s dos menu.
step 6 : Enter the choice : 6 for Hard Disk Tools in the menu.
step 7 : Enter the choice : 1 for HDAT2 4.53 (Test/Repair of Bad Sectors).
step 8 : Now the HDAT2 program window will be opened and select your Hard Disk from the menu.
step 9 : From the “Devices Test Menu” choose the option “Check and Repair Bad Sectors“.
step 10 : Now the repairing process will continue for about several minutes based on your Hard Disk
size.
NOTE :::: Back up highly important data since there is less than 1% chance for loss of some
file..Bit normally it won’t happen