Also try
Trojan Scan.
Does it tell you whrere the trojans are located? If it says they're in "System Volume Information" then, no, it won't be able to clean them from there. That's where all the system restore points are.
Since you don't want to be using a system restore point that contains a trojan, turn off System Restore to delete all restore points, then turn it back on if you want it running. (Control Panel>System>System Restore tab, check "Turn off system restore," click ok.) Once it has finished deleting the usually huge file, just uncheck the box to turn it back on.