I tried to uninstall Adobe Acrobat 8 Professional big mistake.

I tried to uninstall Adobe Acrobat 8 Professional that came on my computer Windows Vista. I did this because every time I wanted to view a document a screen pops up saying I have to buy it. I do not wish to purchase this. I now get an error 1310.  I tried to install the Adobe Reader and it stops with a major problem notice. Says to reinstall. I do not wish to purchase this. I have even blocked all Adobe from the start up menu.