No Adobe Reader has ever updated successfully on any computer I have ever owned. Other parties' product updates invariably succeed. To update, I must completely uninstall Adobe Reader and re-install from scratch. I have this problem only with this product. Moreover, Adobe Reader updates have never worked on any computer I have ever owned, bar none.
Why just Adobe Reader?
Are you talking about updates or upgrades. Upgrades require the download of the new version, typically uninstall of the old version, and then the install of the new version. If updates, just what errors are you getting? Just saying it does not work does not help us help you. You might also ask in the Reader forum.