For businesses with corporate agreements, the VLSC is the only place to get the "Volume License" (VL) version of the ISO. This version is pre-configured to look for a KMS host or accept a MAK key.
If you have already installed the evaluation version and want to move to the full Standard version using your product key, follow these steps: Open as Administrator. Check your current version: DISM /online /Get-TargetEditions windows server 2022 standard iso download not evaluation
To get the "real" ISO that is not bound by trial limitations, you should use one of the following official channels: For businesses with corporate agreements, the VLSC is
Modern business accounts often find their software downloads under the "Billing" > "Your Products" section of the M365 Admin Center, provided they have purchased perpetual licenses through a Cloud Solution Provider (CSP). Where to Download the Full ISO
It cannot be activated with a standard retail key immediately. It frequently shuts down once the trial period ends. Where to Download the Full ISO