If you are experiencing issues with a legitimate serial number, you should contact Corel Support for assistance with your account or activation. UBA Universidad de Buenos Aires alternative software available from Corel? How do I activate CorelDRAW X7 for free? - UrbanPro

To activate CorelDRAW X7 , you must use a unique Serial Number Activation Code provided at the time of purchase

: Buy CorelDRAW X7 from the official Corel website or an authorized retailer. You'll receive a serial number via email.

If you're not comfortable using the Keygen Guru link, there are alternative solutions: