This guide covers activating a Windows 10 Home licence key bought from license4u.co, whether you already have Windows 10 installed or are doing a clean install.
Option A: activate an existing Windows 10 Home install
- Open Settings > System > About and confirm the edition reads Windows 10 Home, not Home Single Language or Pro.
- Go to Settings > Update & Security > Activation and click Change product key.
- Enter the 25-character key from your email and click Next. Activation completes over the internet.
Option B: clean install
- Download the Media Creation Tool from Microsoft's Windows 10 download page and create a bootable USB.
- Boot from the USB, choose Windows 10 Home as the edition, and enter your key when asked or add it later under Activation.
- Finish setup and connect to the internet to activate.
If activation fails
An edition mismatch is the usual cause, so check About first. Then run slmgr /ipk YOUR-KEY and slmgr /ato from an administrator Command Prompt. If the problem continues, email support@license4u.co with your order number and the error code.
Buy the licence here: Windows 10 Home.