Legitimate way to upgrade 10 pro to enterpise

I was sure there must have been some discussion of upgrading pro to enterprise but my searches have
not revealed a specific discussion.

Is there a legal and microsoft recognized way to upgrade a win 10 pro to enterprise.
It appears not to be in my googling... but I would like to know for sure.

I want enterprise version only for nfs support that would be so handy with my linux and solaris hosts.
Perhaps that can be accomplished without having the enterprise version. If so, please post some urls
or pointers.

Hello hput3, and welcome to windowssh blog.

The tutorial below can help show you how to quickly and officially upgrade from Windows 10 Pro to Windows 10 Enterprise without losing anything.

Upgrade Windows 10 Pro to Windows 10 Enterprise

Hello hput3, and welcome to windowssh blog.

The tutorial below can help show you how to quickly and officially upgrade from Windows 10 Pro to Windows 10 Enterprise without losing anything.

Upgrade Windows 10 Pro to Windows 10 Enterprise

Thanks for the prompt reply.
That is a nice clear Tutorial... but still a bit unclear as to how one ever makes this upgrade legitimate
and recognized my MS.

When it gets to the part about using a generic key for the upgrade:

"If needed, you could enter the Windows 10 Enterprise generic product keybelow to upgrade now, and activate later with your valid product key when able."

When would one ever be `able'?
Near as I can tell there is no legitimate way for an individual to get hold of an Enterprise product key.
Hopefully I'm wrong about that.

This is mostly for businesses.

You would have to purchase a volume license to be able to activate W10 Enterprise with. Otherwise, you'll just have a 90 day evaluation installation that you will need to uninstall afterwards.

Buy Windows 10 for your business

Microsoft Volume Licensing - Windows 10

You can't upgrade to Enterprise. It is only available to businesses or those that can afford volume licensing.

You can't upgrade to Enterprise. It is only available to businesses or those that can afford volume licensing.

Or those of us with MSDN subscriptions.

There is no Retail version of Enterprise. The only activation method available is MAK or VL. You have to purchase a license plan from Microsoft to run Enterprise.
My MSDN keys for Enterprise are MAK keys, for evaluation. I've done the upgrade from Pro to Enterprise by doing the change key option. No install media was needed and it did one reboot after upgrading.
I'm running the Education version at the moment though, which is very similar to Enterprise.