Microsoft Releases Build 10158 and 10159 to Fast Ring Insiders

Microsoft’s Gabe Aul surprised Fast Ring Insiders with not one, but two builds in two days.

Build 10158

We are officially one month away from Windows 10 GA (general availability). Microsoft has said that it will release Windows 10 on 2015-07-29. As such, Microsoft released Build 10158 to Fast Ring Insiders on 2015-06-29. I just got the bloody thing do download on my Dell Latitude 10 ST2 (and that wasn’t an easy feat, by the way…) and now, I’m going to have to do it all over again!


But this time, it won’t be a redo of Build 10158. Microsoft has released Build 10159 to Fast Ring Insiders with over 300 bugs fixes in it. Say’s Aul of the rapid fire release:

“Why two builds so fast back to back?! As you probably know, we validate builds that we produce in internal rings where they’re used by engineers in OSG and Microsoft. If they pass all of our criteria we make them available to Windows Insiders, first to Fast and then to Slow once we know it’s a stable build. We’d been using 10158 for almost a week and knew it was going to be a strong build, and the data backed that up so we released it yesterday. Hot on its heels though was build 10159, which in addition to more fixes (over 300 of them!), took in one very interesting change. We didn’t want to wait with 10158 so we went ahead and released that build while we were still evaluating 10159. As it turns out though, 10159 is also a great build and passes our criteria for the Windows Insider Fast ring.”

It’s clear that Microsoft is in bug hunting mode and will be, I think, releasing a number of bug fix builds to Fast Ring Insiders as they approach 2015-07-29. I think it’s going to get VERY busy for Windows Insiders on Fast Ring as bugs are resolved and the Windows 10 Development Team requires feedback and input on bug resolution.

If you’re still on Build 10130 and in Fast Ring, you likely may not see Build 10158 and instead will see Build 10159. That’s normal behavior, and should be ok. If you’re downloading Build 10158 when Build 10159 is pushed out, you may get see error 0x80246017. If that happens, reboot your PC and open Windows Update again; and this should resolve the issue.

Insiders should know that Build 10159 also has the Windows Hero wallpaper that was shown off a few days ago (as of this writing). Other than that and the bug fixes, Insiders should not expect to find any new features or functionality.

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