“NDIS-протокол ввода-вывода пользовательского режима”, которую не удалось запустить из-за ошибки
I wish I had seen this sooner.
I am not sure if this is the cause of the problem you had, but I have seen it in other cases and the results were the same.
Basically, for some reason (a virus, etc.), something has disabled the NDIS service from starting.
However, you cannot see this protocol service listed in the enumeration of services in control panel.
What you have to do is go into the registry and navigate to HKLM\SYSTEM\CurrentControlSet\Services\Ndisuio
In this key there is an entry named Start and its value must be 3 in order for the NDIS Usermode I/O Protocol to start properly.
A virus such as Bagle will change this entry to 4 (disabled) and cause the exact problem you were experiencing.
Sorry I couldn't help you, but maybe someone in the future will come across this forum having the same problem.