Additionally, you will want to deactivate the game using the free utility (or CD menu) so you can play it elsewhere. Using the Support folder “Red Alert 3_uninst.exe” file is something else I did and all went well.
I was borrowing my friend’s CD (don’t tell EA), and after purchasing my own copy I wanted to be using my serial since EA only allows you so many installations before it refuses to work on new machines.
My new copy is now installing without a problem, thank goodness.
Happy New Year.