How to upgrade Windows 11 Home to Pro with a key
You do not need to reinstall. A Pro key unlocks the extra features, and your files and apps stay. It is still wise to back up first.
What you need
A Windows 11 Pro key, internet and 10 minutes.
Steps
- Open Settings, then System, then Activation.
- Click Change product key.
- Enter your Pro key and click Next.
- Confirm the upgrade and let the PC restart.
If an error appears
Disconnect VPNs and try again. If the key is refused, see activation errors.
What you get with Pro
- BitLocker drive encryption
- Remote Desktop host
- Hyper-V virtual machines
- Group Policy and domain join
Not sure you need it? Read Windows 11 Home vs Pro.
Will I lose my files?
No, but keep a backup in case of a power cut.