It is important to note that MAK keys do not work via the Windows 10 Enterprise Evaluation, as such you need to install via the Windows 10 Media Creation Tool.
First download the latest Windows 10 Media Creation Tool from here: Windows 10 Download Page
Once downloaded, open Command Prompt or PowerShell in your Downloads folder. To do this, click in the address bar while inside the downloads folder and type in Powershell then hit enter.
Enter the following line and hit enter:
MediaCreationTool1909.exe /Eula Accept /Retail /MediaArch x64 /MediaLangCode en-US /MediaEdition Enterprise
If you need a 32-bit Windows Enterprise version instead of the standard 64-bit (not recommended), change the following argument to
Confirm the UAC prompt by clicking yes.
You may be asked for the product key at this stage, enter the MAK key provided by us to proceed and build the ISO.
Choose to create the installation media.
Select “ISO File” for the destination media option.
This will make the tool to download the ISO image without media software pre-installed.
Finally, run the ISO image that has been downloaded to your PC and proceed through the on-screen installation instructions to setup your PC.
You may be asked to enter the product key to activate at some stage during the installation, again simply enter the MAK key provided by us to activate.