Can't find the instalation driver arduino.inf

I installed the IDE (10.5 version) and I cannot find the arduino.inf folder in the drivers folder. is there any way I can download that particular driver itself, or do I need to download the IDE again? Also, could the fact that I'm using Windows Server 2012 be a huge problem also?

Please Help!!!

just new myself but have u tried doing a search - like normal search for the file. u can then go to the actual file location e.t.c