You will need to learn how to Google. Its not that hard. Get a windows 10 install disk, get Into cmd, change cmd and some program you can run on login screen, like magnifying glass and reboot when you reboot just run the magnifying glass which is now cmd, and I think its like net users or something like that
True but not for WebDevelopment because the thing about Web is that you have to rely a lot on Threading or Events, which are not default things and not easy to understand in C++.