|Yes and no. One is yes you can but you should not because of the virus.|
Consider live cd's in the system as it is. Barts, UBCD4Win and linux cd's might be used to try to fix or just get data off.
I have never had much luck with a virus. I just reload the whole thing.
"Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10