Can I upgrade to Windows 11 Pro from Windows 10 Home without reinstalling?

You can upgrade to Windows 11 Pro from Windows 10 Home without reinstalling — I did it myself, and all my apps and files stayed intact. Just make sure your PC meets Windows 11 requirements first.

Steps (command way):

Open Command Prompt (Admin)

Run this to switch edition:

changepk.exe /ProductKey VK7JG-NPHTM-C97JM-9MPGT-3V66T

(This is Microsoft’s generic Pro key — it upgrades but doesn’t activate.)

After restart, insert your own Pro key:

slmgr /ipk <your-pro-key> slmgr /ato

Done — system will show Windows 11 Pro activated.

Everything stays — no reinstall needed.

The phrase “upgrade to Windows 11 Pro from Windows 10 Home” is valid in the sense that you’re going from Home → Pro and from Windows 10 → Windows 11 (if you upgrade OS too) or just the edition change within a supported version.

If your system is already on Windows 10 Home and you want to move to Windows 11, you may first upgrade your OS (via Windows Update or Installation Assistant) and then change edition — or do both in one go if your license supports it and hardware is eligible.

Official refs:
🔗 https://support.microsoft.com/en-us/windows/upgrade-windows-home-to-windows-pro-ef34d520-e73f-3198-c525-d1a218cc2818
🔗 https://support.microsoft.com/en-us/windows/can-i-upgrade-to-windows-11-14c25efc-ecb7-4ce6-a3dd-7e2e24476997