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Can Creo 3.0 be installed on Macbook? Does it support OS X system?
There is no MAC OSX support for Creo.
If you are on a Mac, use bootcamp or some other Windows 7 emulator and install Creo under that.
The following topics may be useful for you:
Can I run Mathcad or Creo on my Mac OS?
Using Creo with a Mac