Timely response, you're only 3 years late. OP and others can finally breathe a sigh of relief.
Cracked versions often contain malware, viruses, trojans, or other goodies that can slip by anti-virus software, some even come with instructions telling you to dismiss warnings that the exe is infected. Wonderfully stupid advice.
Discussing pirated or cracked games, even if you purchased the game, isn't allowed on these forums. Aside from the legal reasons see point 2 above.