Computer virus that infects the first or first few sectors of a computer hard drive or diskette drive allowing the virus to activate as the drive or diskette boots.

Boot sector, MBR, Security terms, Virus

To help protect the boot sector from becoming infected with a boot sector virus, many BIOS manufacturers have protection that is enabled or disabled through the BIOS setup. This feature must be disabled when installing an operating system, like Microsoft Windows, that needs to write to the boot sector during the install.

  • How to enter and exit the BIOS or CMOS setup.
  • How to remove a virus and malware from my computer.
  • How does a computer get infected with a virus or spyware?
  • All other computer virus questions and answers.