Please explain your hard drive problem in detail.
A lot of virus creates an autorun.inf file at the root of your local drives and USB flash drive. The reason for this is when you open My Computer and tries to access a drive, it will run the virus to infect your computer. Very often anti-virus is able to remove executable virus from system but not autorun.inf. This is because autorun.inf that’s located at the root of your drive is only an instruction file that tells Windows what to automatically run when you access the drive from My Computer.
So even after the virus being cleaned, you’ll find that you’re unable to access your C drive from My Computer. Some people double click C drive, a search window will appear. For some, it’d say that it cannot find the script or file to run. Most common of all, when double click C drive, it gives you an option to choose a program to open.
Here is a link to software that will fix this type of hard drive problems
http://www.softpedia.com/get/System/Hard-Disk-Utils/Disk-Heal.shtml