Windows Latest reports that Windows 10 KB4556799 is causing a host of new problems for some configurations.
Windows 10 KB4556799 causes BSOD and network issues
Windows 10 KB4556799 is causing a host of new problems for some configurations. In addition to audio issues, temporary user profile and FPS drops, Windows 10’s latest cumulative update is also causing Blue Screen of Death, crashes, and network issues for some users. As often is the case with Windows 10 updates, users are facing[users are facing a range of different issues, but not everyone is experiencing these bugs and update runs without causing any problems for most of the users.
Windows 10 KB4556799 causes BSOD and network issues
