3 days ago, it was pretty cold night, I tried to start my car and the car makes krrrrrrrrr...noise first. Then I tried the second time it started right up. I didn't have any problem in last 2 days. Again today in the evening it was pretty cold weather again....and my car did the same noise (krrrrrrrrrrrrrr.........) again. When I tried the second time, it started without any problem. My battery is kinda new ( 6 months old, not a cheap kind of battery). So, is this the sign of a bad starter or bad ignition switch? Any Idea..........?? Help me Please.

I searched the forum before posting