: You can officially enter a product key through Settings > System > Activation if you have a valid retail license.
: Many lists provide "generic" keys intended for installation only. These keys allow you to install the OS but will not activate it for permanent use. : You can officially enter a product key
: Some guides suggest downloading batch (.bat) files or "cracks" to bypass activation. Security experts warn that these often contain malware, ransomware, or backdoors that compromise your system. : You can officially enter a product key
Instead of risking a compromised system with "cracks," consider these safer paths: : You can officially enter a product key
: Microsoft sometimes allows older systems to upgrade to newer versions that are still officially supported and more secure.