: For small businesses with up to 25 users and 50 devices.

If you have an evaluation version installed and want to activate it with a genuine key, you don't need to reinstall. Use as an Administrator: Check your current edition: DISM /online /Get-CurrentEdition

When using a preactivated ISO file, keep the following points in mind:

In 2023, security researchers discovered a fake "Windows Server 2022 Preactivated ISO" spreading on public trackers that installed a backdoor allowing the distributor to launch ransomware attacks on any server that downloaded it.