Help - create a boot disc to scan all drives

Viruses and worms
1

my sister - in law seems to have the FBI virus.
how to create a boot disc to bypass the normal start up with the virus going off.

2

Have PM’d the malware experts to assist you in getting rid of this.

Would not recommend attempting to cleanse the system without expert guidance, as there often is more malware hidden and downloaded beyond the FBI infection, thus remnants left over can reinfect the system.

3

Here you have instructions
http://forum.avast.com/index.php?topic=53253.0