boot malmo virus

For the XP PC's boot the computer from the xp cd and go into repair mode. You'll get a c:\windows> prompt. Type "fixboot" and press enter.

For the Win 2000 PC's if the file system is NTFS then download NTFSDOS from http://www.sysinternals.com/ntw2k/freeware/ntfsdos.shtml. Then use the switch for fdisk - fdisk /mbr - clears the main boot record. Probably need a win 98 startup disk to use fdisk.

Here is what symantec suggests but you will need a rescue disk set. http://securityresponse.symantec.com/avcenter/venc/data/junkie.html