Great. As far as I can see, you appear to be virus-free. Go ahead and uninstall ComboFix. Go to Start > Run and type in combofix /u (note the space) and click OK.
Then let's clean your restore points and set a new one:
Reset and Re-enable your System Restore to remove infected files that have been backed up by Windows. The files in System Restore are protected to prevent any programs from changing those files. This is the only way to clean these files: (You will lose all previous restore points which are likely to be infected)
1. Turn off System Restore.
On the Desktop, right-click My Computer.
Click Properties.
Click the System Restore tab.
Check Turn off System Restore.
Click Apply, and then click OK.
2. Restart your computer.
3. Turn ON System Restore.
On the Desktop, right-click My Computer.
Click Properties.
Click the System Restore tab.
UN-Check Turn off System Restore.
Click Apply, and then click OK.
System Restore will now be active again.