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failed to create host-only network

Posted: 19. Nov 2012, 05:00
by gallexy
I've used virtualbox4.1 for years and created several VM in it,
recently I tried to upgrade to 4.2 but can not create host-only network after installation.
And it left an unknown device with hardware ID "sun_VBoxNetFltmp" in device manager ,
which I can not uninstall, so I can not roll back to virtualbox4.1,
so what should I do?