on my laptop with Windows Vista 32x and after upgrading from VirtualBox 4.1.18 to 4.1.20 I have this annoying error on all my existing VM's and new VM's.....:
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Cannot access the kernel driver
Make sure the kernel module has been loaded succesfully
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Fallo al abrir una sesión para la máquina virtual Windows8-RTM.
The virtual machine 'Windows8-RTM' has terminated unexpectedly during startup.
Código Resultado: E_FAIL (0x80004005)
Componente: Machine
Interfaz: IMachine {5eaa9319-62fc-4b0a-843c-0cb1940f8a91}
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I have tried to:
1.- Repair (no luck).
2.- Uninstall / Reinstall (no luck).
3.- Uninstall / Reinstall previous version (4.1.18) (no luck also)...
4.- Uninstall and remove all registry keys and vbox*.sys files. Reinstall 4.1.20 (no luck).
After every uninstall I have a WARNING on my 'Device Administrator' (Start -> Execute: devmgmt.msc) on:
-> VirtualBox Bridged Networking Driver Miniport #4
I haven't be able to remove that 'VirtualBox Bridged Networking Driver Miniport #4'.
So I suspect it is the culprit, but I am not sure.
I need ASAP to solve this problem.
Any idea ?