Avira has a
rescue system which I think is a Linux live CD with their anti-virus app installed. There are other solutions similar to this one as well.
You might be better off going with one of these pre-built solutions.
Another option might be to put your hard drive in an external hard drive enclosure and scan it on a system with good anti-virus and anti-spyware tools on it.
Yet another option is to start a thread in the malware removal forum asking for assistance, since you can't really access Windows right now. They might have ideas of viable options for you.
Peace...