Microsoft releases Windows 10 build 19555 to the Fast ring with fixes

Microsoft released Windows 10 Insider Preview build 19555 to the Fast ring today, although there aren't any new front-facing features. As is the new way of doing things, this build isn't tied to a specific development branch like 20H2 or 21H1, as Microsoft no longer wants to hear about it when a feature shows up and then isn't ready for the shipping version of the OS. Now, the Fast ring is just the development branch.

It's worth noting, however, that we are expecting 20H2 to be a minor update, similar to 19H2. The next big feature update will likely be 21H1, so any new features being introduced now are going to ship to the public then.

This build, however, just has a bunch of fixes and improvements. Here's the list:

  • We’ve resolved an issue where certain external USB 3.0 drives ended up in an unresponsive state with Start Code 10 after they were attached.
  • The cloud recovery option for Reset this PC is now back up and running on this build.
  • We fixed an issue resulting in ARM64 devices not being able to upgrade to the previous build.
  • We’ve updated Protection History in the Windows Security app to show a loading indicator in cases where loading is taking longer than expected.
  • We fixed an issue with the modern print dialog not displaying the print preview correctly in certain cases in recent flights.
  • We fixed an issue that could result in the Start menu and apps not opening until explorer.exe had been restarted after locking then unlocking your computer while listening to music.
  • We fixed an alignment issue with the toggles under Windows Update > Advanced options when certain policies were enabled/disabled.

And of course, there are some known issues to be aware of:

  • BattlEye and Microsoft have found incompatibility issues due to changes in the operating system between some Insider Preview builds and certain versions of BattlEye anti-cheat software. To safeguard Insiders who might have these versions installed on their PC, we have applied a compatibility hold on these devices from being offered affected builds of Windows Insider Preview. See this article for details.
  • We are aware Narrator and NVDA users that seek the latest release of Microsoft Edge based on Chromium may experience some difficulty when navigating and reading certain web content. Narrator, NVDA and the Edge teams are aware of these issues. Users of legacy Microsoft Edge will not be affected.
  • We’re looking into reports of the update process hanging for extended periods of time when attempting to install a new build.
  • We’re investigating reports that some Insiders are unable to update to newer builds with error 0x8007042b.
  • We’re looking into reports that some Insiders are unable to update to newer builds with error 0xc1900101.
  • The Documents section under Privacy has a broken icon (just a rectangle).
  • The IME candidate window for East Asian IMEs (Simplified Chinese, Traditional Chinese, and the Japanese IME) may not open sometimes. We are investigating your reports. As a workaround if you encounter this, please change the focus to another application or editing area and back to the original and try again. Alternatively, you can go to Task Manager and end the “TextInputHost.exe” task from the Details tab, and it should work afterwards.
  • We’re investigating reports that certain devices are no longer sleeping on idle. We have identified the root cause and are working on a fix for an upcoming flight. If your device is impacted, manually triggering sleep should work (Start > Power button > Sleep).

As always, you can grab today's build through Windows Update. If you're not on the Fast ring yet, you can enroll via the Windows Insider Program tab in Settings.

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