Kaspersky Boot Rescue Disk - Kaspersky Lab's newest development, which allows you to completely kill any viruses, including even the most dangerous, with which it is impossible to get to boot Windows.
Extras: The program is an iso-image of a multiboot disk. To work with him, you need to burn an ISO image to CD disc, then a disc in the CD-ROM, and boot from it. A unique feature of this tool is that it allows for booting from BIOS, even going into the system shell Windows.
In fact, this almighty tool to combat viruses. Having him there, you can save a bad computer, and all the valuable information on it.