Download Adprep.exe For Windows 2019 [repack] -

You can find for Windows Server 2019 directly on the Windows Server 2019 installation media (ISO or DVD) . It is located in the \support\adprep folder of the drive.

If the user performing the promotion does not have the high-level permissions (Enterprise Admins or Schema Admins) required to extend the schema, a delegated admin may need to run it manually first. How to Run Adprep for Windows 2019 download adprep.exe for windows 2019

If you plan to add Read-Only Domain Controllers, run this in the forest. adprep.exe /rodcprep Use code with caution. Important Prerequisites Microsoft Learnhttps://learn.microsoft.com Windows 2019 ADPrep and DomainPrep - Microsoft Q&A You can find for Windows Server 2019 directly