How to remove boot viruses
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WHAT IS A BOOT VIRUS?
An MS-DOS virus infects the boot record program on hard disks and floppy disks or the master boot record on hard disks.
The virus gets loaded into memory before MS-DOS starts and takes control of the computer, thereby infecting the computer when the computer is booted from an infected disk.
A boot virus may make it impossible to start the computer.
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You can read more on what boot viruses are in he box to the right. This guide will show you how to remove boot viruses.
Please follow the guide below:
For Windows XP users
For Windows Millenium and Windows 98 users
Use the DOS utility
The boot sector must be replaced using the DOS utility FDISK.EXE:
- Switch off the PC, wait several seconds then boot from a clean system disk (to prevent the virus from being loaded into memory).
- At the command prompt type: DIR C:
- Check that the contents of the infected drive are visible. If they are not contact support for advice.
- To overwrite the master boot sector enter FDISK /MBR
Note: If you don't have a clean system disk, you can get create one by following this link:
- Windows 98 - Choose Windows 98 OEM
- Windows 98 - Choose Windows 98 SE OEM
- Windows Me - Choose Windows Me OEM
Kind regards,
The BullGuard Team
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