Creo 2.0 Setup doesn't work
I have an academic license and I am trying to install Creo 2.0, downloaded on this page (MED-100WIN-CD-390_M070_Win32-64). Itsn't the first time that I install the program because the license was not working and uninstall it. But this time, trying to install it, the setup.exe doesn't work! I run it and nothing happens. I tried many things (run as administrator, run in safe mode, run with other compatibility ...) but nothing works when the first time I installed everything was fine. Also installer of trial version runs but the full version no. When I run setup it generates the following file "traceback":
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The timestamp is: vie jun 28 05:51:48 13
The datecode is: NA
The pro machine type is: NA
The process ID is: NA
The traceback type is : CRASH
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Exception EXCEPTION_ACCESS_VIOLATION has occurred in the thread 2764.
Main Thread 6496
=====================
0x774EF8D1 NULL (NULL:0) (ntdll:0x774D0000) ( 0x748, 0xffffffff, 0x0, 0x28c4530 )
0x761D1194 NULL (NULL:0) (kernel32:0x761C0000) ( 0x748, 0xffffffff, 0x0, 0x409e4c )
How to fix this in order to install the program? I have Windows 7 64 bits and sorry for my bad English.