Seriel banned after unistalling

Yes, you need to deactivate a program before you uninstall

http://helpx.adobe.com/x-productkb/policy-pricing/activation-deactivation-products.html

What is the EXACT message you get when you try to reinstall?

Did you DE-activate before uninstalling?

If not, you need to contact Adobe to have your activation count adjusted

When you can't deactivate a serial number
BE SURE TO ONLY ASK FOR ACTIVATION SUPPORT TO ADJUST YOUR ACTIVATION COUNT
You may need to PERSIST or TRY AGAIN to find a support agent with more experience
Click here https://helpx.adobe.com/contact/support.html

-click the chat icon at the bottom right of the page to open a chat session
-the chat icon looks like '3 dots inside a circle' at the lower right
-type AGENT into the chat window to connect directly to a person rather than the AI
Do be aware that Adobe's staffing is impacted by the virus, so wait times are long
.
Also: beware of answering anyone who sends you a private message
-click for more information about scammers https://tinyurl.com/10791730