This final reason applies more to people who resist change or aren’t very technically savvy. Yes, Windows 10 is stellar and absolved Windows 8’s worst sins. Getting used to the new operating system shouldn’t be too difficult for many PC users—but the transition isn’t entirely seamless. From Cortana to the introduction of the Edge browser to the radically new-look Start menu, and Windows 10's evolution into being a more cloud-centric operating system, there are some big changes you’ll need to wrap your head around.
Do Windows 10’s new features and under-the-hood improvements make upgrading worthwhile? I think so. But if you aren’t comfortable dealing with changes on your computer, you might want to stay put. I know several less technically inclined people who paid technicians to revert their PCs to Windows 7 after they couldn’t wrap their heads around Windows 10.
Conversely, if you’ve perfected your workflow on your current operating system and don’t see much benefit in marquee Windows 10 features such as Cortana, the Windows Store, DirectX 12, and virtual desktops, it may not be worth the hassle to switch over to Windows 10.