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MS Leaks MORE Win10 Versions?

Last Thursday, June 1, MS watchers noticed a strange new release of Windows 10 hit Insider Preview. According to some reports at, it may even have hit other Windows Update channels. Soon thereafter, Dona Sarkar posted a blog entitled “A note about the unintentional release of builds today.” She explained this as “an inadvertent deployment to the engineering system that controls which builds/which rings to push out to insiders.” The release showed up as Insider Preview Build 16212, and also as 15063.2.rs2_release_svc_d.170531-1743 (UUP-CTv2). But subsequent analysis of the code itself later turned up telltale signs of more Win10 versions in the offing.

What This About MORE Win10 Versions?

You can find reports on those findings from numerous sources, including and The latter quotes an interesting tweet from user AndItsTito that depicts three new such versions, while Thurrott talks about only one. Here’s a screen capture of some content that AndItsTito reports finding in the 16212 pkeyconfig file:

Here, you see mention of Windows 10 Pro for Advanced PCs twice, plus a “ServerRdsh” version of Windows Server 2016.

Neowin speculates that the Advanced PCs versions are for high-end workstations, probably with two or more CPUs. The N version is for Europe in keeping with a decade-old settlement between the EU and MS. The other non-N version is for the rest of the world, and probably includes legacy media player support. Also, the ServerRdsh version strongly suggests something designed to work with the Remote Desktop Services Host. It is probably intended to provide remote Windows 10 client OS access and support, either for one-off applications or for full-blown, fully-equipped Windows OSes.

Only time will tell if these speculations are warranted, or if in fact more Win10 versions materialize. The data is suggestive, and may point to more rather than fewer Windows 10 versions to come. I find myself in agreement with Paul Thurrott’s counter-suggestion that there should be only one Windows 10 where advanced features come from the particular license applied to the code base. Making things simpler rather than more complex is one way to stem the tide of desertions and defections from the desktop/PC world that Windows serves best. Is MS open to such input? Again, only time will tell!