One of the two warez versions, 7.05, changes the registry of your PC for overcoming the trial limitation. After that change, normal Gamestudio versions won't run anymore on that PC.

The only solution is to reformat the hard disk, and then reinstall Windows. Merely installing Windows won't do because it preserves the registry.

In the future, better don't install warez software... in your own interest. Buying 5 2000 EUR PCs and then installing warez on them is not a very clever act. The legal MED version runs on all PCs, even very old and cheap ones.