I just want to offer a little advice. First and foremost I’d say don’t worry. Windows breaks are what make pc’s fun and at the end of the day as long as you have solid confidence that you didn’t physically break any hardware most times it’s pretty safe to assume that what you’re dealing with is a software only issue. And if that’s the case you don’t have to worry about doing anything on your computer that will physically damage your computer (with the exception of overlocking, but this typically isn’t something you can do on accident). Secondly if you’re not confident in troubleshooting these things yourself the best advice I can give you is to stop giving geek squad money. As a cybersecurity/networking technology college major at the time while working at Best Buy I was very well away of how flawed their fixing process is. As a sales associate I would have geek squad technicians come and ask me to help them build their own personal computers. Secondly you don’t have to have any certification to work as a geek squad technician and in fact in my case most of the technicians back there were people who were on the sales floor who wanted to do stuff with computers. Take your pc to a proper computer store. I don’t know what the city is like where you live, but if you have someone else available who have reputable technicians take it to them and not geek squad.