CS5.5 is not supported under El Capitan. I’m afraid you’re own here.
I'll agree with Bob. CS5.5 is categorized as "end-of-life". It will never receive an update.
You really only have two choices: (1) roll back to an earlier Mac OS X version, or (2) update to a Creative Cloud subscription.
This is not particular to you. A very large number of people with CS6 or earlier software find it does not install or work well in El Capitan.
Thank you Bob and Steve for your insight.
Is Adobe's latest Creative Cloud supported on a computer like mine: OS El Capitan (v. 10.11.3 (15D21))?
Have you noticed any issues downloading and using Adobe CC's Design Standard programs?
Why has Adobe switched to a monthly subscription service?
Is there an option to use a disk instead, like earlier CS systems?
I've looked into rolling back to an earlier OS and called Apple several times to see if someone could reinstall this (Lion / Mountain Lion / Yosemetie).
Unfortunately it doesn't sound like this is easily done. It might cause other network and software issues down the road.
Most Apple Stores don't even carry or support earlier versions of OS.
Subscription models for software are becoming more and more common. Get used to it.
The software is downloaded and installed just like any other desktop software. Only the licensing has changed.
Beyond the O/S, you'll need adequate RAM and a good processor. The newer the software, the more demanding of system resources.
Great, I will definitely look into this option.
Thanks for your insight.
Which Adobe CC subscription would you recommend for a small graphic design workflow?
If I do decide to roll back to a previous operating system as an option, which one would you recommend and is this easily done?
I noticed that Adobe Design Standard CS5.5 worked well with Yosemite, before the switch to El Capitan.
Is this preferable or would Mountain Lion or Lion be even more compatible?
If you work with InDesign you will need, so I am sure, also Acrobat Pro, Photoshop and Illustrator and Bridge. Each single application would cost more together than the whole CC subscription. I would recommend that.
So I found a way to successfully downgrade my OS from El Capitan to Yosemite!
1. Transferring the installation files onto an external hard drive
2. Main Instructions:
Fairly involved but completely doable. Worth calling up Apple while you are going through the instructions.
This takes up an entire afternoon and evening to do, but it's worth it!
You'll need a blank USB Drive / External Hard Drive (16GB+).
Right after installing CS5, you'll also be asked to install the latest Java:
Since doing this I can now run Adobe CS5 without unexpected shutdowns or compatibility performance issues (for a long while hopefully)!
El Capitan is great for newer computers, but not older models (late 2011).
Besides the Adobe software there are other problems (internet speed, application speed, start up issues).
Go for it! Will keep CC in mind for the future though!
Thanks for all of your help and insight!