How to Downgrade from Windows 10 Enterprise to Windows 10 Pro
InformationStarting with Windows 10 Insider Preview Build 14352, deploying Windows Enterprise edition gets easier.
Prior to Windows 10, the upgrade from the Pro to Enterprise edition required a complete wipe and reinstallation (clean install) of the OS. In Windows 10, Microsoft enabled bit-less edition upgrade from Pro to Enterprise. This means all the features are on the device already and the upgrade to Enterprise edition can be performed by changing the product key rather than having to download and deploy a new image. However, doing this required a reboot to complete. Microsoft heard a lot of feedback about having to reboot to complete the upgrade so starting with build 14352, a reboot is no longer required when upgrading from the Pro to Enterprise edition.
Luckily, it's just as easy to downgrade from Windows 10 Enterprise back to Windows 10 Pro.
This tutorial will show you how to quickly and directly downgrade from Windows 10 Enterprise to Windows 10 Pro without losing anything, having to clean install, or restart the computer.
You must be signed in as an administrator to be able to downgrade from Windows 10 Enterprise to Windows 10 Pro.
1. While in Windows 10 Enterprise, change the product key to a valid Pro product key. (see screenshots below)
NoteIf needed, you could enter the Windows 10 Pro generic product key below to downgrade now, and activate later with your valid Windows 10 Pro product key when able.
2. Click/tap on Next. (see screenshot below)
3. When Windows is activated, click/tap on Close. (see screenshot below)
4. You have now downgraded to the Windows 10 Pro edition. (see screenshot below)
NoteYou will need to close and reopen Settings to refresh it to see Windows 10 Pro displayed instead of Windows 10 Enterprise.
How to See which Edition of Windows 10 you have Installed
I tried the above instructions but I get the following error either after entering the generic Windows 10 pro key or my KMS key for Windows Pro on a computer that had an Enterprise key accidentally applied to it. I have also tried the method of changing registry keys to get it to downgrade to pro as well, but that method doesn't give me the option of keeping all of my installed programs. Any help would be much appreciated as we have a few developer machines that have this Enterprise key attached to it that we got from our Windows Licencing account before we received our KMS key.