>>81669464It's doable if you don't play anything newer than 2021. But since I do, I moved to dual-booting Windows 10 IoT Enterprise LTSC (for pirated games and software) and Bazzite (for Steam games). 10 LTSC is almost as good as 7 once you tweak it a bit. Bazzite is amazing. It uses 3GB less RAM than Windows when gaming.
>>816695488/8.1 is also obsolete by now and kinda garbage. If you want to upgrade, I recommend 10 IoT Enterprise LTSC. It's got security support till 2032 and it's a decrapified version of 10 aimed at medical/enterprise computers. It doesn't get those annoying feature updates that tend to fuck things up. Only security updates.
Or if everything you do on your computers can be done on Linux, that would be the best option.