Remove a Boot Sector Virus

How to Remove a Boot Sector Virus(2)

Tips
1.To make the bootable floppy in Microsoft Windows, go to My Computer, right click on your floppy drive (usually A:\ or B:\), click "Format...", then find the box that says "Create a MS-DOS startup disk". Then copy the flashing utility, and the low level format utility.

2.If you feel uncomfortable completing any of the steps, take your computer in to a specialist.

Warnings
1.Be sure to write protect the floppy and remove the HDD before you flash the BIOS, because any virus that is residing in the boot sector of your HDD may copy its self over top of the BIOS you just flashed.

2.A Low-Level format will erase anything and everything on your HDD. It does this because it erases the whole disk, and not just the File Allocation Table (FAT) which is the directory for the hard drive. Its kind of like a telephone directory. When you delete things or do a format in Windows or DOS, known as a High-Level format, it tells the FAT that there is nothing there anymore, but leaves the data on the disk. A Low-Level format or delete tells the FAT that there is nothing there and then rewrites the sectors on the HDD where the file was. Because of this there is no possible way to get your data back after this process is complete.

3.If you reboot your computer before the flash utility is finished with your BIOS, it will corrupt the BIOS and render the computer inoperable. You will need to get a new motherboard if this happens.

the article source:http://www.wikihow.com/Remove-a-Boot-Sector-Virus