How to Delete an app whose uninstaller is 32 bit and won't run on Catalina

Drag the app into the Trash.

Basics for Uninstalling Software

Most OS X applications are completely self-contained "packages" that can be uninstalled by simply dragging the application to the Trash.  Applications may create preference files that are stored in the /Home/Library/Preferences/ folder.  Although they do nothing once you delete the associated application, they do take up some disk space.  If you want you can look for them at the above location and delete them, too.

Some applications may install an uninstaller program that can be used to remove the application. If you cannot find the uninstaller then you could download the freeware, Easy Find, to locate files that need to be removed. The places you need to search include:

1. /Home/Library/Applications Support/ folder. Check if the application has created a folder then delete the folder that's in the Applications Support folder.
2. Applications may install a startupitem or a LogIn item. StartupItems are usually installed in the /Library/StartupItems/ folder or the /Home/Library/StartupItems/ folder.  Login Items are set in the Users & Groups preferences. Open it in System Preferences, then click on the Login Items tab. Select the item from the list and click on the Delete [-] button to remove it.
3. Some software use startup daemons or agents.  Look for them in /Library/LaunchAgents/ and /Library/LaunchDaemons/ or in /Home/Library/LaunchAgents/.

Some applications install a receipt in the /Library/Receipts/ folder.  Usually with the same name as the program or the developer.  The item generally has a ".pkg" extension.  Be sure you also delete this item as some programs use it to determine if it's already installed.

There are many utilities that can uninstall applications.  Here is a selection:

• AppZapper
• AppDelete
• Hazel
• AppCleaner
• CleanApp
• iTrash
• AppBolish
• AppUninstaller
• Uninstaller

For more information visit The XLab FAQs and read the FAQ on removing software.

Well, I just reinstalled it, told it to look for orphans, it found a number of them. I marked two I knew for sure were ophaned files but it moved all the ones it found to the trash and I couldn't put them back :)

This is on Catalina.

Naturally curious how any of these automated cleaner applications could differentiate PSE15 from PSE19 installation content, especially if there are name space overwrites of some content in same installer locations by PSE19? Isn't there a risk of removing some of the PSE19 installation, and having to reinstall it afterward?

A lot depends on how each version's support files are named. Most Adobe apps have uninstaller so there would be no need to depend on any of these "cleanup" apps. However, if there is no difference in naming, etc. then it's going to be a problem, surely. One might hope that the installers are smart enough to avoid such problems. Apple seems to have addressed the problem in order to upgrade macOS without having to erase the disk each time. Of course, I don't think any of the app delete utilities are quite that smart.

It would be interesting to find out which of the many app delete utilities out there are able to make the right decision identifying what goes and what stays given the case you have set forth.

Kappy, you may want to remove "AppDelete" from your list. It hasn't been updated in two years and the site appears to be gone.

You're welcome. FWIW, I had it installed as well. Last I checked it will run on Catalina but as I said, the link is dead.

Hmmm. The one you posted wasn't working so I searched for it yesterday found the same link. Interesting.

My original link wasn't correct but the new one above seems to work. The app works well, too.

I checked out AppDelete. It was last updated in May 2019 - Vers. 4.3.3. The website is still present. I'll check the link in my post. It may be wrong.

Checked my link and it's bad. The correct one is https://www.reggieashworth.com/appdelete.html.

A fair question. For the most part it's not an issue. However, it's possible to check which file is where before you go ahead and delete something you shouldn't. I've used both the free AppCleaner (not to be confused with App Cleaner) and AppDelete for years without a problem. Until this recent issue with AppDelete on Catalina. Of course it helps to know to check before deleting anything.

Thanks. I will check that out. I've been using it for years, and it's still functioning. But it may be time for a change. Happy Holidays.