How to install unigraphics4 in vista

First its not a good idea to piggyback your question on someone else's. This can lead to confusion. You should start a new thread. So I've moved your question to its own thread.

You uninstall a program by going to Add/Reove Software in Control Panel.

How to instal ProE in Vista

Read the install instructions that came with it. Generally its just insert the Cd and follow instructions.