I have been getting very frequent messages titled Window Installer saying
Preparing to install then I have to used control, alternate delete to get rid of it and  am still unable to open my document or picture.

I now can't even open a word processor document I made up a couple weeks ago.
I am running RegVac, A1Click and System Mechanic Pro. which says my system is fair but it can find no problem.

   Try installing or reinstalling the word processor.