Most PC's you buy come with an already activated Windows.
Some don't, and you must activate them yourself with the key any legal version of Windows 8 came with. If your PC came without such a key, go back to the shop and claim it (maybe they forgot to give it to you) or buy it (in case they deliberately loaded a cracked version of Windows). It's not free.
But since you're perfectly fine with the situation, I wouldn't spend money for a license for either Windows 8 or Windows 10, and continue as you do.
I bought this PC like 5 years ago, and ever since, it has continued to prompt me with the message "Activate Windows" every 3-5 hours. This wouldn't be so bad, if it didn't tab me out of whatever game I'm playing. Middle of a competitive game? Nope, tab out, Activate Windows. Big bright blue screen, with the only button sending me to my PC Settings, telling me to put in some random *** key that I don't have. I don't want to upgrade to Windows 10. I'm perfectly fine with my Windows 8. I've calculated that it's asked me to "Activate Windows" over nine thousand times. I've tried YouTube tutorials, everything to find a way to disable this. None have worked. As if this wasn't bad enough, most of the time when I X-out of the PC Settings it directs me to, it lags or whatever and just re-opens, forcing me to close it a few seconds later, having a random delay to it.


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