IDLE won't open

I am very new to programming and I am trying to use Python on my computer. I downloaded and installed the program, but when I try to open IDLE, the Windows blue loading circle pops up and then disappears and nothing else happens. I'm using Windows 10 and Python version 3.4.3. I've tried downloading it from different sources, changing the path in environmental variables, repairing Python, and googling answers, but nobody seems to have the answer or even a similar problem. I would greatly appreciate any help.