How to upgrade Windows Vista to modern?

Question

Windows

There is Windows Vista Business OEM.
What are the options for upgrading it to any modern Windows (of course, for a fee?)
Both Windows 7 and Windows 8 are suitable.
Actually, you need an honest, cheapest way to get a modern Windows.
I am a natural person, the computer was taken on sale.

Answer 1

There is Windows Vista OEM

Is there - where? Home or company? How many - 1 or many?
Save data, back up the system just in case, format the drive and install Win 7 or 8.1 - whichever you prefer.

Answer 2

First to 7, then to 8.1. Depends on the edition of the system. But it's easier from scratch. And wait for 10, it will be out soon.