— Gabriel Aul (@GabeAul) December 15, 2014
Microsoft last week released an update for the Windows 10 Technical Preview (Build 9879) to fix an issue with frequent Explorer.exe crashes – KB3020114. But there was a problem that affected about 12% of PCs when installing this update, causing the install to fail. Today, Microsoft released an update to Windows 10 Build 9879 to fix this issue. Check for updates on your PC to install this fix.
Read more about it here.