It looks like after having offered a workaround for issues that arose in about 12 percent of PCs running the Windows 10 Technical Preview build 9879, Microsoft went ahead and released a hotfix to patch up the situation



From Windows Central:

According to Gabe Aul of Microsoft:

New hotfix posted for #WindowsInsiders on WU that fixes the underlying issue for http://bit.ly/1yv0u4e .

For more information about the issue, you can read about the workaround.

  Microsoft releases hotfix for Windows 10 Technical Preview build 9879