Purchased full retail Logic Pro 8; can't get rid of academic serial number

Question

I had originally purchased the *Academic version*, entered the serial number, but *aborted the install* without going beyond entering the serial number when I found out from this forum that I would never be able to upgrade the software unless I paid the extra $50 now for the Full Retail version.
I *bought the full retail version* $499 (returning the not-installed academic program $449,) proceeded with the >4 hour install, only to find that *I cannot update the serial number* to the full retail serial number. I tried uninstalling using appzapper, it only deleted 384MB of the 40 GB install, and then it took the same >4 hours to re-install - still with no chance to enter the full retail serial number.
Does anyone know how to update Logic Pro 8's serial number or to do a *re-install that will force me to re-enter the serial number*?
--R

Answer 1

The program is exactly the same, it's only the serial number that you need to dump. So no need to uninstall or reinstall Logic, just leave it as it is. App Zapper won't find the file that contains the serial number, I've checked. Hence your problem.
Very easy fix. Go to Users/YOUR USER/Library/Preferences/Logic. Inside that folder will be 'com.apple.logic.pro' and 'com.apple.logic.pro.cs'. I can't remember which is the serial, but just dump both, start Logic, and it will ask for your serial again. Put it in, and it will create a new one of those with your correct serial. And you're done.
NOTE - Inside the Preferences folder mentioned above, there may be some preference files with the same names, but those aren't the ones you're looking for. You need to look *inside the LOGIC FOLDER that is contained within the Preferences folder mentioned above*. Others have made this mistake.
Good Luck!