√√ Windows 10 Pro Product key for activating 1 device.
√√ The key can be used again after format if you don't change your hardware.
√√ The key can upgrade your Windows 10 home to Windows 10 Pro.
If you get an error the key doesn't work this could be due to an old key in your registery, to clean apply this fix
Run Command prompt as an admin
Restart your pc
Use the key then
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