After manually cleaning the results of the "Spyware Protect 2009" Trojan, some browser features and a few other odds and ends weren't behaving correctly with Windows XP SP3. After deciding to execute a system restore back a week or so to try and clean things up I noticed that System Restore does nothing when I click NEXT after selecting a restore point. The same is true in Safe Mode. The service is indeed running, the disk monitoring is set correctly, there is plenty of free disk space and the system restore data is present in he System Volume Information folders at the root of each monitored drive.
Cleaning the Trojan involved several passes with AVG antivirus and then manually removing the registry key and run value associated with the Trojan's executable and removal of a few non-Windows dll files and executables - nothing too invasive as far as I can tell
One more thing I noticed, and this is not good news - the system will not perform a check disk either from the disk management snap-in or if requested at reboot. This may indicate registry or file system damage that could require a complete format/reinstall but there are a total of four drives connected and all exhibit the inability to run a disk check.
Any assistance would be greatly appreciated.