My products only lists that I purchased CS4, I have also purchsed the upgrade to CS5 and to CS6.
I need to de-activate CS6 on my Hard drive and install it on a new Hard drive - but how do I get CS 6 again and what license serial number must be used?
Did you register the products? If so it will be in Adobe/My Products.
Yes I did and they previously reflected.
If you are saying they were there before and not now look again closely. I think there are several categories in My Products. If you can not find it then call Adobe customer support.
When you get the s/n and download link burn a disk of the install file and keep it an s/n in safe place. You may need it in future.