Re: How can I uninstall a long-ago expired Adobe XI (11.0.06) trial? During the trial, Ver XI installed itself as my "default", which is still making it difficult for me to access the Adobe X (10.1.10) that I previously purchased.

I agree with TSN that there should be an uninstaller there (I am not familiar with a MAC, but on the PC there is a list of installed programs that has the open for deleting/updating. However, you may still need to do a repair on the AA X once you finish. In that case, go to the Help menu of Acrobat and select Repair.