windows installation problems

I have recently come into possession of a Lenovo 14w (Gen 1) School Laptop after my school started to phase out Chromebooks in favor of Macbooks. Normally, Windows 10 is preinstalled on the laptops, but the school tech department decided to install ChromeOS Flex on them, so they could be used as...

I tried to upgrade my windows 10 through usb installation but it said remove media then try again. But my old windows 10 is corrupted and I can't log into it. It shows blue screen and just restarts. I installed a windows in another drive not to lose my data in drive C. Can I remove media from...