Help please. Just did a big change on my pc and big issues

Sep 6, 2018
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I just installed a ryzen 5 2600
in a msi x470 plus mobo
and then a msi 1050 ti

And now windows wont activate and I bought this pc new with windows 10 on it and I don't have the product key, I sent the seller an email but I doubt he still has info I need. AND theres no sound coming out of my tv (plugged into my pc with hdmi through the new gpu)

Please help, and if possible send me an instant message link or something so we can discuss it actively. this pc is also my work computer and I have to have windows running again asap.
 
Sep 6, 2018
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I just said feck it and bought a 6 dollar code to enter. it worked and windows is back up. now im just dealing with the gpu issue. but im installing drivers now so hopefully itll detect it then