My PC doesn't recognize my Device topic

Before my computer can recognize my Device but last week I decided to format my PC and this day i tried connecting it to my computer and my PC doesn't recognized it. I tried downloading the Samsung USB drivers, tried installing Samsung KIES, Using other cables and ports but still I doesn't recognize my device what should I do? Im using CM 11.0 and Im planning to flash it to CM 12.0 thats why I need my device to be recognize thanks. :)