Re: and after disabling UEFI...
> There is always an alternative to Windows that is not Ubuntu.
What a dumb statement. There's always an alternative to something if you don't need it. Like starving to death is an alternative to eating. But it's not a *good* substitute.
Likewise, while there are other OSs besides Windows, there are a ton of valuable Windows applications that do not run on other OSs, and don't have compatible substitutes if even any substitutes Since people who are not hermits and use their computers for work often have to share documents with Windows users, an incompatible "alternative" won't suffice, either.
What would be nice is a genuine fully-compatible Windows substitute that could run all Windows applications, but Microsoft has gone to great lengths to make that virtually impossible. WINE is a cute toy but doesn't cut it in the real world of business computing.