Windows 10 build 10576 for PCs known issues

Microsoft rolls out a new build of Windows 10 for PCs with various small changes and new issues.

Windows 10 PC, logo, blue background

On October 29th, Microsoft released Windows 10 build 10576 for PCs to the Fast ring of updates with a small number of improvements and final touches to get the update ready for the November release. The company also said that build 10576 includes a “good set of bug fixes” as well.

The major changes are happening on Microsoft Edge, where the software giant is now enabling users to cast content to any Miracast or DLNA enabled devices, and Cortana now can scan content on PDF files that you open with the web browser.

The new build should be now more stable, but because Microsoft is rolling it out through the Fast ring of updates, it also means that there are more bugs and fewer workarounds. For this reason, the company is detailing the current known issues and workarounds that you should be aware of before jumping into this build.

Known issues for Windows 10 build 10576

  • Missed call notifications and send texts from Cortana, requires this build and higher. Microsoft has made a change that improves this experience that requires newer builds.
  • When notifications pop up from Action Center, any audio playing (like music from Groove, or videos from the Movies & TV app) gets reduced by 75% for a period of time.
  • After upgrading to this build, all your Skype messages and contacts are gone in the Messaging app. The workaround for this is to navigate to C:\Users\<USERNAME>\AppData\Local\Packages\Microsoft.Messaging_8wekyb3d8bbwe\LocalCache in File Explorer and either delete or rename the “PrivateTransportId” file. Then restart the Messaging app. Additionally, you can install the app from the Store as an updated app.
  • Small form-factor devices, like the Dell Venue 8 Pro, that boot with rotation or virtual mode screen size set larger than the physical screen size will experience a blue screen on upgrade and will roll back to the previous build.
  • After upgrading to this build, the power button on your Surface Pro 3 may no longer put your Surface Pro 3 to sleep and instead shut down.
  • WebM and VP9 have been temporarily removed from builds. We continue to develop a VP9 implementation that we intend to ship in Windows. Expect VP9 to return soon in a future build.

While there are a few bugs in this new build, we’re expecting the company to fix them quickly, as the public release of “Windows 10 Fall Update” should happening within days — you can view all the new improvements and fixes Microsoft is incorporating in Windows 10 build 10576 in my previous write-up.

Source Microsoft

About the author

Mauro Huculak is a Windows expert and the Editor-in-Chief who started Pureinfotech in 2010 as an independent online publication. He is also been a Windows Central contributor for nearly a decade. Mauro has over 12 years of experience writing comprehensive guides and creating professional videos about Windows, software, and related technologies, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 20 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and