Creo 6 student version install issues.

Upon first installing Creo 6 I missed the Licensing step. *A code was provided to me*. I started the install of the program and the computer froze and crashed half way through. (Firewall was not deactivated for this step). I tried to resume the install but after I proceeded past the licensing step, the application would close and nothing happened after. 

I then deleted the files that I saw were installed and deleted the zip files to start over. I installed the licensing using the code provided. Once I hit next to proceed to installing, the setup program will repeatedly close after hitting next. The firewall was deactivated during this attempt. 

If its anti-virus software, I'm using McAfee. How do I completely disable the app?

PS: I did not use setup-school, I used setup.exe. The zip file was extracted before the setup was started. 

Thanks.