After doing a bit of research, I discovered that TH1 stands for ThresHold1, and that is the branch that contains the Windows 10 RTM candidate builds. When I went to download Build 10240, I saw that the new build was coming from a branch titled TH1 ( Figure D). The last build that I downloaded, prior to 10240, was 10166-and it too came from the fbl_impressive development branch ( Figure C).įigure C Build 10166 was the last Insider Preview to come from the impressive branch. In the February/March 2015 timeframe, the builds started coming from a branch titled fbl_impressive ( Figure B).įigure B Builds in the February/March 2015 timeframe came from the impressive branch. The first builds of 2015 came from the awesome branch. Here, the fbl stands for Feature Branch Level and awesome1501 stood for awesome in January 2015. In January of 2015, the builds came from a branch named fbl_awesome1501 ( Figure A). Microsoft distributes Windows 10 builds to Windows Insiders via the most current development branch, and the branch name is listed in the filename displayed on the Windows Update screen. I'm basing my guess on the development branch name, the installation procedure, and the new desktop, which no longer displays the watermark.

Last week, Microsoft released Build 10240 of Windows 10, and I think this will be the actual Release To Manufacturing (RTM) candidate-even though Microsoft hasn't yet officially made that announcement. Now that you know when Windows 10 will be available, you may be wondering what the actual release version will look like. So, if you are interested, find a Microsoft Store near you. On that date, most of the Microsoft Stores in the US, Canada, and Puerto Rico will be celebrating with special events. As you know, Microsoft has promised to make Windows 10 available on July 29, 2015.

Windows 10 pro 10240