Microsoft allows anyone to download Windows 10 for free and install it without a product key. … It’ll keep working for the foreseeable future, with only a few small cosmetic restrictions.

How long can you use Windows 10 without a license?

A simple answer is that you can use it forever, but in the long term, some of the features will be disabled. Gone are those days when Microsoft forced consumers to buy a license and kept rebooting the computer every two hours if they ran out of grace period for activation.

Is Windows 10 legal without a license?

2 Answers. Hi, Installing Windows without a license is not illegal, activating it through other means without an officially purchased product key is illegal.