how to know i am hacked

 

On the net there are several diagnostic tools on the net they are very good but I offers you a very effective tool it's free and from "Microsoft"

TCPView

Equivalent to the command "netstat-n", it allows you to monitor in real time the behavior of applications (processes) meant we can know who is connected applications, offline or try to connected to the internet.

Assuming you have detected a Trojan on your system and you want to delete it.  The first thing to do is to disconnect the internet to cut the connection between the Trojan and his hacker.
 

an offline Trojan is not dangerous

to eliminate Trojans look to my next poste.