Re: Acrobat Error code: 1602
Download the Microsoft Clean Up Utility by searching it on the internet. After you have download and installed it in your pc, you need to go to "Start" --> "Programs" and click on "Windows Install Clean Up" to launch the program. In the list that appears, you have to choose “Adobe Reader” (note: nothing else), and then you have to click on the "Remove" button and then "Exit "and restart your PC. This will remove the Adobe application and now you can again install it properly with all the updates in your pc.
Re: Acrobat Error code: 1602
There might be some registry problems in your pc which is not letting you to install Adobe Reader and hence giving you error codes. To solve this issue you will need to download a Registry Cleaner tool such as the CCleaner. First download this tool by searching it on google and install it in your pc. After that open the CCleaner tool to remove the Adobe registry entries completely from your pc and then try to reinstall the Adobe reader again and see if this time the update works normally.