Final answer:
Each process in Windows runs in its own virtual address space, which prevents a faulty driver operating in kernel mode from affecting other processes.
Step-by-step explanation:
In Windows kernel mode, a misbehaving driver is prevented from impacting other processes primarily due to each process running in its own dedicated virtual address space.
While the Windows Virtual Address Manager manages these spaces, the isolation is provided by the virtual memory management system that ensures separation between the address spaces of different processes. Hence, the correct answer is B: Each process runs in its own dedicated virtual address space.