It was called “Threshold 2” or similar: http://www.forbes.com/sites/gordonkelly/2015/11/14/windows-10-threshold-2-surprises/#5577a17090f0 http://www.redmondpie.com/windows-10-1511-build-10586-november-update-is-out-heres-how-to-update-now/
It’s effectively an OS upgrade – it would have reset your update history. I believe, from memory, you can uninstall it for the next 30 days. After that, Windows 10 will clean up/delete the uninstall files that it’s keeping on your hard disk. From: ozdotnet-boun...@ozdotnet.com [mailto:ozdotnet-boun...@ozdotnet.com] On Behalf Of Greg Keogh Sent: Monday, 22 February 2016 10:27 AM To: ozDotNet <ozdotnet@ozdotnet.com> Subject: Re: [OT] Windows 10 warning Find out what update was installed. If it was Build 1511, then think of it as Windows 10.1 I see I'm on Version 1511 OS Build 10586.104, but really surprisingly, my update history says "No updates have been installed yet" so I can't tell if a valid upgrade undid my changes. I'm unfamiliar with this "Windows 10.1" upgrade -- GK
