They’re a few options for you. Pull your HDD and put it in anther computer and then scan it with at least two or more virus scanners. The other option is to boot from a live CD and then run two or more scanners. I suggest two or more scanners, well for example had a 60Gb HDD I knew was infected with a multitude of virus, Norton Antivirus found and removed 300+, AVG found and removed 20 and then PC Cillin found and removed an additional 8. If you are trying to extract the virus from the file it has become part of open the only way I can think of is to open the file and export the data, do a scan or three, and import.

Useful links
Bart PE


Good Luck