There are a million YouTube tutorials that can help, and microcenter will fix it for you if you mess up, I believe it is $20 for them to do so. When my PC didn't boot at first they were my first thought. But if you are really worried NZXT has a pretty good website for custom prebuilts
They won't but the staff is pretty knowledgeable. So if you're trying to build a PC with certain specs or on a budget they can recommend things. Just be courteous and don't take advantage of that though and expect them to spec out your entire build for you.
No but I would do that for you
I highly doubt it
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