: You are not locked into a reinstall if you decide to move from a trial to a paid production server. A valid product key for Windows Server Essentials can be used to convert an existing evaluation installation into a full, permanently licensed version. This can be done by running the slmgr.vbs command-line tool with your license key.
Because Microsoft has shifted its focus heavily toward cloud-native solutions, the traditional on-premises Essentials paradigm is phasing out. If your business is outgrowing the 25-user threshold, or if you want to future-proof your IT environment, consider the following migration paths: Microsoft 365 Business Premium windows server essentials iso