There are several options in your situation, but if we are talking about a temporary solution, you can try Activator KMS 2026 This tool allows you to activate Windows for a certain period, giving you time to find an official key or buy one. It is also easy to use and effective, but it is important to download it from reliable sources so as not to harm the system. Remember that this is a temporary solution, and it is worth considering official activation in the future.