CS6 upgrade doesn't recognize the serial number CS4

I've managed to install CS 4 and CS6 upgrade; the number of CS4 series has always been recognized as valid. Once a Windows fatal accident forced me to reinstall all my applications, I can't reinstall the upgrade of the CS6, because CS4 serial number is not recognized as valid. What should I do to restore the validity of my CS4?

After a chat session, it has File number 0214898719. Chat session timeout before finishing a response.

Adobe support can only deal with this so you will have to come back with someone in the chat to resolve the issue.  Don't forget to provide your file number.  Good luck.

Tags: Adobe

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