Educated teen run away challenge

I contacted Dell to ask them how much it would cost to sent my laptop in for a service repair. They asked me for my tag number. Upon giving them the tag number they were very impressed that my laptop was still going :D but in the same breath they said they could not repair it as its parts has not been made for at least two years now. So I explained my dilemma about only being able to afford a new one in a year's time and what went wrong with this one, you know all the screens , freezes and auto starts. He then said it is a windows corruption or drivers missing error. He also told me to not install windows 11 even if the computer says it can, because he can see on his end its not compatible. So he sent me this biiiiiig email with instructions on how to use a usb to save windows 10 files and then to start up my computer and press f12 repeatedly until a menu came up then to select the usb drive and when asked where to do it I need to delete ALL partitions so I can get rid of the corrupt part of windows. I did that and although I had a tiny little shock because now I only have a huge c drive and not a small c drive and a decent d drive anymore. But so far so good. I am happy to say that I backed up everything to the external and have reinstalled everything and is ready to hop in game. So far no freezing or blue screens all day long :)