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Windows 10 Build 10240 released for the Fast Ring and Slow Ring of Insiders

Windows 10 Build 10240 released for the Fast Ring and Slow Ring of Insiders

by AshwinJuly 16, 2015

Microsoft has surprised users, by releasing Windows 10 Build 10240 for the Fast Ring and Slow Ring of Insiders.


This build is touted as the Windows 10 Build 10240 is the RTM (Release to Manufacturing). This build has been reportedly sent out to OEMs (Original Equipment Manufacturers), such as Dell, Toshiba, for them to include the operating system on new PCs. We recently reported that some new PCs will be sold with Windows 10, on July 29th.

These systems are likely to ship with Windows 10 Build 10240. So, if this is true, we have officially reached the end of the Preview Builds before the launch of Windows 10.

Changes in Windows 10 Build 10240:

Microsoft says that the watermark which appears on the bottom right corner of the desktop, which in Preview Builds, displays the version number of the build, as well as the Edition of Windows 10.

Microsoft proudly claims that its new browser, Microsoft Edge is incredibly fast and that it has managed to beat Google Chrome and Apple Safari’s own Javascript benchmarks.

    On WebKit Sunspider, Edge is 112% faster than Chrome
On Google Octane, Edge is 11% faster than Chrome
On Apple JetStream, Edge is 37% faster than Chrome

(Are you reading this Google?)

As I mentioned in my previous write up, Microsoft has pulled Windows 10 Preview Build ISOs, from the Insider Program. So, even though the Build 10240 is available to the Slow Ring, ISOs have not been released for the same. The Insider page, which previously had links to the ISOs now redirects to the home page of the program.

It appears that the Redmond Company will only resume the release of ISOs after the launch of  the final build of Windows 10.

How to download Windows 10 Build 10240?

The only way to get Build 10240 is from the Windows Update. You can do so by navigating to Start > Settings > Update & Security > Windows Update > Check for updates. This will initially download a small update, in what I believe is a pre-upgrade update, following which Build 10240 will be downloaded.

As you can see from the above image, my computer has downloaded Build 10240, and is ready to install the update. I will do so, and look around for changes in the new Build, and if there are any, I will write up an article detailing the new features.

Oddly enough, the build has been renamed from “Impressive” to  “TH1 Professional”. The acronym may be related to the old codename for Windows 10, which was called Threshold.