Creative suite 6

If you had CS6 installed as part of Creative Cloud and do not have a purchased serial number for CS6, you will not be able to activate it even if you reinstall it.

If Windows, you can try System Restore.

Please described you problem more detailed.

Which operating systemn do you use?

What have you exactly done before the error occur?

More input -> more and better output.

If you're missing installations files take a look here: Download Adobe CS6 Trials: Direct Links (no Assistant or Manager) | ProDesignTools

If you have a problem with de-/activation CS6 you have to contact the Adobe support.

But be aware of: CS6 is no longer supported by Adobe, and this is a public forum... other users here can't provide any direct help... the only help I can offer is...

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

Be sure to remain signed in with your Adobe ID before accessing the link
Do be aware that Adobe's staffing is impacted by the virus, so wait times are long
-make sure that your browser does NOT block ads, scripts, or pop-ups
-you must also allow 'cookies' in your web browser for the link to work
This link will go directly to the chat option
Type "Agent" in the chat box to bypass the chatbot and be connected to a person
-Meaning type in the word Agent without the quote " " marks
https://helpx.adobe.com/contact.html?rghtup=autoOpen
.
Adobe does NOT do support by email, so beware of answering anyone who sends you a private message
-click for more information about scammers https://tinyurl.com/10791730

Moving thread to the Download & Install forum from Using the Community