Here are some of the known issues and fixed issues on Windows 10 Build 10049


Microsoft has just released a new Windows 10 build: Build 10049. The build brings Project Spartan only and there isn’t anything else new. However, there are some bugs on this build as usual. Here’s the list of the known issues on Windows 10 Build 10049:

  • After logging in, you may see a blue screen instead of your desktop. To work around this issue, lock your PC (with the hardware button or by pressing the Windows Key + L) and try logging in again. You can also try Ctrl + Shift + Esc to open Task Manager.
  • Indexing of new email in Outlook is not working, so search results will be limited to when the last index was built.
  • If you have Virtual Machines hosted on your PC running Windows 10, you will want to move to the Slow ring and wait for the next build as this build breaks the ability to run VMs.

As you can see, the build breaks the ability to run Virtual Machines – so if you’re a developer, you should probably not download this build. Alongside Spartan, the build also fixes some bugs that shipped with Windows 10 Build 10041, here’s the list of the fixed bugs:

  • We’ve fixed the issue from Build 10041 for when the Photos app on your PC crashes when you tap on the circular icon at the top left to view the photo you just took.
  • We’ve also fixed the issue from Build 10041 where you might end up in a state where windows open on your desktop are accidentally visible behind the Start Screen, Task View, Snap Assist, and when rearranging windows in Tablet Mode.
  • You will no longer get stuck when you manually lock your PC (Windows Key + L) during the initial out-of-box experience.

If you’ve found any other bug on Build 10049, make sure to notify Microsoft using the Windows Feedback app!