Convert Windows 11 Home to Pro using a Microsoft 365 Windows upgrade license

How to convert Windows 11 Home (BIOS embedded product key) to Windows 11 Pro using a Microsoft 365 for Business Windows upgrade license

Check BIOS embedded product key using PowerShell

In this example, we have a laptop with a Windows 10 Home BIOS embedded product key that we need to convert to Windows 11 Pro so we can connect it to Office 365 Intune.

You can check the BIOS embedded product key using the following PowerShell

If the output is Core OEM the computer has a Windows 10 home firmware embedded key.

(Get-WmiObject -query 'select * from SoftwareLicensingService').OA3xOriginalProductKey
(Get-WmiObject -query 'select * from SoftwareLicensingService').OA3xOriginalProductKeyDescription  

Example: Windows 10 Home firmware embedded key

Core OEM:DM is Windows 10 Home

Purchase Windows 11 Home to Pro upgrade license

If you've got a laptop with a Windows 10 home key in the BIOS, you'll need to purchase a Windows 11 Home to Pro upgrade for Microsoft 365 Business license from your Microsoft Partner.

Get Windows 11 Pro activation key

The Windows 11 upgrade licenses will show in the Office 365 admin portal

Billing - Your products

Click on Windows 11 Home to Pro Upgrade for Microsoft 365 Business

Select language and download ISO (optional)

Show activation keys

Copy key to clipboard

Install Windows 11 Pro

Set up for work or school 

Activate Windows using the Pro upgrade key

Settings - System
Windows isn't activated - Activate now

Change product key

Enter product key

Activate Windows

We've activated this copy of Windows