Comment Control of Secure Boot via the Windows copyright (Score 1) 81
Microsoft has no control over secure boot. You can even load your own custom keys for the Windows boot process
Microsoft has control over distribution of the copyrighted Windows operating system. It has used this control to dictate whether or not makers of devices that include Windows are allowed to let users load their own custom keys. For example, Microsoft required makers of devices that come with Windows RT (the port of Windows 8 and Windows 8.1 to ARM architecture) to block end users from turning off Secure Boot and block end users from loading their own custom keys, as conditions for a license under copyright to distribute Windows RT on those devices.