You need to use a bootable virus removal solution.
download this rescue disk: http://dlpro.antivir.com/down/vdf/rescuecd/rescuecd.exe
The file will will be an image file that you burn onto a cd using your burning app: if you do not have one download free one from this site: http://www.imgburn.com/
save the rescue disk on your desktop open imgburn and select the image file and burn it on a blank cd.
UPDATE:
this link downloads exe version that automatically burns the disk without any other burning software:
http://dlpro.antivir.com/down/vdf/rescuecd/rescuecd.exe
Boot the cd: >select start rescue system and use the up/dn keys to navigate the options and the spacebar to tick or untick your selections.
i suggest you select full scan and attempt to repair infected files.
download this rescue disk: http://dlpro.antivir.com/down/vdf/rescuecd/rescuecd.exe
The file will will be an image file that you burn onto a cd using your burning app: if you do not have one download free one from this site: http://www.imgburn.com/
save the rescue disk on your desktop open imgburn and select the image file and burn it on a blank cd.
UPDATE:
this link downloads exe version that automatically burns the disk without any other burning software:
http://dlpro.antivir.com/down/vdf/rescuecd/rescuecd.exe
Boot the cd: >select start rescue system and use the up/dn keys to navigate the options and the spacebar to tick or untick your selections.
i suggest you select full scan and attempt to repair infected files.