Anybody who buys or upgrades to a Pro version of Windows automatically gets downgrade rights. Some organizations (including, I think, London police) are still

Anybody who buys or upgrades to a Pro version of Windows automatically gets downgrade rights. Some organizations (including, I think, London police) are still rolling out Windows 8.1 with full Microsoft support. Windows 7/8/8.1 are all supported for 10 years under Microsoft's standard published software lifecycle.