Yea I heard that I need a powerful PC & much time , but thank you for answering anyways
Sorry to be so harsh with the answer. I just want to make sure you don't go into it thinking you're going to be able to mine with your PC, no matter how much of a beast it might be. I guarantee I can hand you a little USB miner that will blow the doors off of the best computer you can buy. Then, I'll show you a miner that will slaughter that little USB device.
If you're really interested in mining, there's a bunch of hardware out there for you to look at. Your PC is not one of those pieces of hardware