I can't open creo parametric 10.0
Hi,
I have installed the student version 10.0 of Creo Parametric.
It is the first time for me to install this software so I followed instructions provided (https://apps.ptc.com/schools/references/install_creo9_unistudent_standard.pdf) and everything seemed to be ok.
When I started the software it couldn't run, and an error -21 occurred.
What should I do?
Thank you

