Out of no where my Adobe CS5 programs stopped working. I haven't done any upgrades to warrant this outcome. Yes, I know CS5 programs are old - I only use Dreamweaver CS5 & Illustrator CS5 for minor editing of active files.
What operating system and version do you have?
If you are on Mac and have updated the OS to the latest, Catalina, you're going to need newer software. Macs no longer support 32 bit programs and all Creative Suite versions of Adobe products were 32 bit.
Could you better describe "stopped working"?
Does the program open, then crash or simply never open? Is there an error/warning dialogue window that comes up?
In the meantime, get Brackets, a free code editor.
Inkscape is an open source vector graphics app, similar to Illustrator
Or get the latest Creative Cloud + DW + AI free for 7 days. The latest versions are compatible with modern operating systems.
Please ensure your computer meets or exceeds the minimum system requirements to run Creative Cloud + all other apps. Requirements vary by product and platform.