When you used the MCPR removal tool what did it say when it finished?
What operating system and service pack is this?
Can you use System Restore to go back to before all this started, i.e. before you installed IE9?
If so then that should fix it but you will have to right-click the taskbar icon and select "Check for updates" immediately afterwards or errors could start happening.
If not I suggest you contact Technical Support Chat via the link under "Useful Links" at the top of this page.