It's so amazing and wonderfully fine tuned at the moment! It's so pesky to have to do this every 6 monthes! Actually... it's been over a year.
Presently I can't install/uninstall anything or open any word documents... I've tried to uninstall Windows Installer, and manually downgrade it (msi.dll, etc) to v1.2 from v.2 but nothing's working!