My problem is very similar to this one.
I'm running XP Home with SP3. I have the latest version of Spybot, which is 1.6.0, along with the latest updates. No matter how many times I immunize, I always seem to have 27035 unprotected threats. Yes, I am on the administrating user on this machine. Also, the undo thing didn't help either. Can someone help me please?