How can I downgrade windows server 2019 oem to 2016


Hi all

I have two question:

My customer has buy WIndows server 2019 OEM without hardware,

Can I downgrade to 2016?

I called windows support, but support said I must have windows server 2016 license that I can downgrade,

Customer doesn't have any windows server 2016 license, Can I use Windows Server 2019 OEM license transfer to Windows 2016?

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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  1. Leon Laude 85,651 Reputation points

    Hi @Anonymous ,

    You can find the official PDF regarding the downgrade rights on the link below:


    (If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

    Best regards,

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  2. Joy Qiao 4,886 Reputation points Microsoft Employee


    OEM for Windows Server 2019 could downgrade to previous Windows Server 2016.

    But as it is related with OEM release, try to contact your OEM about this issue. Part of the OEM's contract with Microsoft in regards to providing the OEM media and license is that they will address licensing questions about their OEM product.

    As I know, such as HPE device, we could obtain a downgrade kit after the initial HPE OEM Windows Server product purchase by placing a request online at It will provide help on downgrade process. We could contact with them if they could provide a valid product key used for activation.

    (Source link:

    Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.

    If my information is useful for you, please accept it as answer to help more customers search for result more quickly.



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