Activating Windows 10 Without Key — Is It Safe for Long-Term Use?

Hey,

I’ve been using Windows 10 for a while, and I never bothered to buy a product key because the system runs fine without it, minus the watermark. However, I’m starting to wonder if activating Windows 10 without a product key is a good long-term solution.

Is it possible to use Windows 10 fully without activation, or will I encounter limitations after a while? Some people talk about using activation tricks to get rid of the watermark and access more features, but I’m worried it might mess up my system.

If you’ve tried activating windows 10 without key or using any alternative methods, how has it worked for you? Does it cause any major problems in terms of updates or functionality?

Would appreciate your input on whether it's worth the hassle or if I should just bite the bullet and buy the key.

Thanks!