267 Views 3 Replies Latest reply: Oct 23, 2012 11:15 AM by léonie
check this support article:
The most likely reasons:
- You don't enter your serial number from an Administrator account
- Confusing look-alike letters
- Using the number key pad to enter the numbers in the serial number
- An invalid pro-app system Id file
- Your serial number is an upgrade key for upgrading from Aperture 1 and you also need to enter the Aperture 1 serial.
Post back, if Aperture still refuses to accept your serial number.