Windows 10: Why is upgrading to a newer version of windows always a downgrade?

I have been using dual monitors since it became possible, I don't know....windows 95 maybe? I have always had my taskbar on my secondary monitor ONLY. I have to imagine most people who game or watch a video full screen, want to do this on their main monitor, but also want to still be able to open other programs on the secondary monitor, looking things up about their game, watching videos while gaming, Youtube etc. I cannot imagine any reason ever for needing taskbar on both monitors or on main monitor only which is what we now have. Why do you people always break things that worked just f

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Downgrading from a pirated Windows OS

You've already mangled your existing operating system by upgrading to a pirated version of Windows 10. Use your Windows 8.1 disk to do a new installation of your original Windows 8.1 operating system. If you have saved the product key from your original Windows 8.1 operating system, then use that product key again to install Windows 8.1.

You can downgrade from Windows 10 to Windows 8, by following the instructions in the answers to this question: How can I downgrade from Windows 10 to Windows 8?. Why not downgrade the pirated Windows 10 to Windows 8 instead and then change the product key and upgrade legally back to Windows 10? There are two reasons for not doing it this way:

1. Your new Windows 10 can inherit problems from the pirated version of Windows 10.
   
2. It's a two-step process to install Windows 8.1 and upgrade to Windows 10 instead of a four-step cumulative history: Windows 8.1 -> pirated Windows 10 -> downgrade pirated Windows 10 to Windows 8.1 -> upgrade to Windows 10. Even though the two-step method doesn't save any time, it still eliminates two unnecessary steps.
   

 

Upgrading Windows 10 to a newer version

Version upgrade for Windows 10 is free.

 

Upgrade to a newer version of Windows 10

What is the charge/cost to upgrade my laptop to a newer version of Windows 10 since it appears that I am running an older version of Windows 10 and keep getting promos to upgrade?