Despite Microsoft's repeated requests for an extension to the standard 90-day disclosure deadline, Google has gone on to reveal a "medium" severity flaw in systems with UMCI, such as Windows 10 S.
Device guard RSS
While it has been widely believed that Windows RT is dead, there are signs of the continued existence of the platform in Windows 10 RT. This comes from the supported OSes in Device Guard.
One of the new security features coming to Windows 10 is called Device Guard. Alongside Windows Hello and Microsoft Passport it aims to offer enterprise customers top-notch security on their devices.