I currently have Reader 8.1.7. I want to install 9.2. It is my understanding that I must uninstall the old version before installing the new version. However, in my add/remove programs I have 2 Adobe Readers--Adobe Reader 8.1.7 that can be deleted. Adobe Reader 8.1.7 CPSID 50029 that says it cannot be deleted. How do I procede and if I am able to update, do I install 9.1 and apply patches or just download 9.2.
There is no real requirement to uninstall 8.x before installing 9.x; the upgrade should automatically uninstall the previous version. (Not recommended if the previous version is very old, say 6.x).
You don't need 9.1 and upgrade to 9.2; you can directly download the full 9.2 installer.