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Microsoft Releases Windows 10 19H1 Preview Build 18329

Microsoft today released Windows 10 preview build 18329 with search improvements and support for desktop apps to run in Mixed Reality.

Microsoft today released Windows 10 19H1 preview build 18329 to Insiders in the Fast ring. Today’s release comes on the heels of last week’s build 18323 which introduced a few new features. Today’s build introduces a few new features – including running Win32 desktop apps in VR. And it continues to put the final touches for the next feature update expected this spring. Here is a look at what you can expect.

Windows 10 19H1 Preview Build 18329

One of the new features includes “Top apps in Search” which will show you the apps you use the most when you open Search.

Also part of this build is the ability to run desktop apps in Windows Mixed Reality Environments. “In this update, we added the ability to launch Desktop (Win32) applications (such as Spotify, Paint.NET, and Visual Studio Code) in Windows Mixed Reality, just like how you launch Store apps,” writes Microsoft execs Dona Sarkar and Brandon LeBlanc.

In addition to the new features above, here are the other changes and improvements you can expect in today’s build:

  • REMINDER: The new tamper protection setting in the Windows Security app protects your device by helping to prevent bad actors from tampering with the most important security settings. The setting is designed to be on by default, however the default state is not currently in effect for current Insider Preview builds. You may see a new recommendation in the Windows Security app suggesting you turn this setting on.
  • We fixed an issue resulting in many Win32 apps having an unexpectedly long launch time due to being incorrectly suspended by the OS in the last two flights.
  • We fixed an issue where the Windows Insider Program settings pages via Settings > Update & Security > Windows Insider Program had a bug preventing Narrator and Screen Reader programs from properly reading the page.
  • We fixed an issue from the previous flight where Desktop Window Manager would crash if multiple Office and/or video playback applications were running on the same screen on devices with Multiplane Overlay Support.
  • We fixed an issue resulting video playback going black after rotating a device from landscape to portrait.
  • We fixed an issue resulting in a green screen with error Kernel_auto_boost_lock_acquisition_with_raised_irql when using an Xbox controller with your PC.
  • We fixed an issue resulting in USB devices, including mice and keyboards, potentially not working after updating to recent builds.
  • We fixed an issue resulting in intl.cpl hanging when copying settings.
  • We fixed an issue resulting in Microsoft Edge not being able to access local IPs.
  • We fixed an issue resulting in not being able to extend your monitor to a second screen connected via Miracast.
  • We fixed an issue where when you opened a new Notepad window and pressed CTRL + F, the Find window would unexpectedly be populated with the search query from the last time the Find window was used in a previous Notepad instance.
  • We fixed an issue from the previous flight that caused consistent black screens when using Remote Desktop, DisplayLink, or Miracast if you are on an AMD or Nvidia driver.

Of course, as it the case with all Insider preview builds, this one includes a lengthy list of known issues for both user and developers. Make sure to read Microsoft’s full announcement for all changes, known issues, and workarounds.


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