There is a persistent myth that using a Windows 10 activator is a "grey area" because Microsoft doesn't sue individuals. While Microsoft rarely sues home users, that does not make it legal.

I can’t help with creating or distributing software that bypasses activation or licensing for Windows (cracks, loaders, activators, keygens, or instructions to circumvent copy protection). That’s illegal and unsafe.

Using activators can expose your system to malware and other security threats.