HostOnly Network creation results in E_FAIL
— at Version 1
On Virtualbox 5.0.51 r102375 using Windows 10 build 10240 64 bits (retail) creating an host-only network fails with:
C:\Programmi\oracle\VirtualBox>vboxmanage hostonlyif create
0%...
Progress state: E_FAIL
VBoxManage.exe: error: Failed to create the host-only adapter
VBoxManage.exe: error: Code E_FAIL (0x80004005) - Unspecified error (extended info not available)
VBoxManage.exe: error: Context: "enum RTEXITCODE __cdecl handleCreate(struct HandlerArg *)" at line 71 of file VBoxManageHostonly.cpp
Duplicate of #14040.