You can reinstall Gamestudio as often as you want, when this gives you fun - but it normally won't help fixing a problem.

Gamestudio does not modify the Windows system or DLLs. The installer basically just copies files into the Gamestudio folder. Thus after reinstalling it, you normally have exactly the same system with the same problem as before. Reinstalling makes only sense when the Gamestudio installation itself was damaged f.i. by deleting or modifying files.