Can you upgrade Windows 7 ultimate to enterprise?

Answer 1

In case you have Windows 7 Enterprise (x64 or x86)

It is actually not that difficult to flip from Windows 7 Ultimate Machine or VM to Windows 7 Enterprise (you just need to modify the registry keys to reflect it), and then use the Windows 7 Enterprise DVD to run an upgrade.
First you should of course backup your data.
Here is a quick hack to make the Windows 7 installer DVD think you have Windows 7 Enterprise already.

1. Open regedit (Start -> Run -> regedit )
2. Locate HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\Current Version
3. Edit two keys to say ProductName and EditionID to say "Enterprise" instead of "Ultimate" respectively.
4. You should now see Enterprise and Windows 7 Enterprise as values on this page.
5. Insert your Windows 7 Enterprise DVD and run an Upgrade install.
6. Open a Command Prompt and Run "C:\Windows\system32\slmgr.vbs -ckms" to clear any KMS servers
7. Optionally clear your product keys with "slmgr -cpks"
8. Run "C:\Windows\system32\slmgr.vbs -ato" to register with your Enterprise Activation server

Answer 2

You cannot upgrade Windows 7 Ultimate to Enterprise. The two versions of Windows are so different that they do not support an upgrade path between them. However, if you’d like to use the features and capabilities found in a higher version of Windows, there are several options available.

One option is to purchase a new license for either the Enterprise or Pro version of Windows 10 from Affordablekey—a best seller website with super sale offer up to 80% discount when you use coupon code: EID2023 . This is usually the least expensive option as it will get you up-to-date on your computer operating system licenses without incurring additional fees for upgrading from one major release/version of Microsoft software (like going from Win7 Ultimate -> Win10).