$OEM$ Folders

(Windows Pre-Activation)

Overview

To create a pre-activated Windows installation .iso, do the following things:
Extract $OEM$ folder to the desktop using the MAS script.
Copy the $OEM$ folder to the sources folder in the Windows installation media (.iso or USB).
The directory will appear like this: \sources\$OEM$ in your altered .iso or on your bootable USB drive.
Now use this .iso or bootable USB drive to install Windows and it will either already be activated (KMS38) as soon as it boots or will self-activate (HWID or Online KMS) at the first internet contact.
You can check here about activation method details and select the activation method as per your requirement.
On Windows 8 and later, running setupcomplete.cmd is disabled if the default installed key for the edition is OEM Channel. For example - Preactivation won't work for Windows 10 Iot Enterprise because installed key is of OEM channel.

Windows Server Cor/Acor (No GUI) editions don't have clipup.exe file.
To KMS38 activate it, you need to download ClipUp.exe file from the below official MS link.
https://msdl.microsoft.com/download/symbols/clipup.exe/5789984414b000/clipup.exe
Rename the downloaded file as ClipUp.exe and put it beside the KMS38 Activation script. That would be either MAS_AIO.cmd or KMS38_Activation.cmd
Activation script will check ClipUp.exe in the current folder (from where script is running) and will use it accordingly.

When using HWID activation, no files are stored on the system, and Windows 10-11 will be activated when connected to the internet for the first time.

When using KMS38 activation, no files are stored on the system, and Windows 10-11-Server becomes activated immediately without Internet.

When using Online KMS activation, Windows and Office both will be activated when connected to the internet for the first time. This option uses a renewal task for lifetime activation.

In this method, Windows 10-11 will be activated with HWID, and Office will be activated using Online KMS.

In this method, Windows 10-11-Server will be activated with KMS38, and Office will be activated using Online KMS.