Hello!
I was trying to download the adobe programs on my 2011 iMac but I need macOS 10.13 or later, but it seems that I can't update the computer's software. Now it has OS X Yosemite - version 10.10.5.
Help! Why can't I update?
Likely due to something you have installed on the computer that is preventing it. Please do the following and we can look for obvious issues:
Please navigate to the Mac App Store or navigate to www.Etrecheck.com and download the free version of EtreCheck. Once you have you downloaded the app and installed it, please run the report and save it. This report will help us get a good idea what has been installed on your system and help us be able to diagnose what may be wrong.
When you have your report, you can attach it when you reply to this message and we can then review it and help you determine what is needed to get your system running well again.
For instructions on how to download your EtreCheck report and attach it to your reply to this message please click https://discussions.apple.com/docs/DOC-250000211
Have you tried all the steps at > How to upgrade to macOS High Sierra - Apple Support
Can't update software on a 2011 iMac
