I bought the student subscription to creative cloud last night after my demo had expired. I run the after effects program and the "your trial has expired" window pops up. I click next, on the bottom left and it prompts me for my email. I put in the email and hit next but it takes me to a window which prompts me for my serial number which I don't have since I'm using cloud.
It may have something to do with the fact that I think I may have used a different email for my trial, and a seperate one to buy the subscription. I'm guessing that there is a problem distinguishing the accounts maybe on my computer or somewhere in the program itself. I have tried uninstalling many times, restarted my computer mulitple times and have tinkered with the locations and preferences and everything. But can't seem to find a solution!
Sorry for the long post, help would be GREATLY appreciated!!!