Option 1: accept SLIC table licenses for upgrade to Windows 10, which means a free license of Windows 10 to anyone that uses you-know-who's you-know-what
Option 2: Deny all SLIC tables and surprise everyone who thought that their computer that came with Windows 7 will get an upgrade to 10.
Though to be honest I can't imagine it being too hard for the Windows 10 upgrader to ignore D's fake SLIC table. The fake one is a driver on the OS's hard drive while the real one is in the BIOS. All it has to do is reboot the computer and bypass the main OS.