I went into the security center, and saw that the service was off. I tried to turn it on, and a message popped up saying "the security center service cannot be started;" I checked services, and saw that security center is missing from there as well. So what can I do? I also don't know when this started to happen. Anyway, I am using 32-bit vista, pentium dual core, T4200 @ 2.00 gHz, 4 GB ram. Oops, I seem to have made a similar thread to this one, but I didn't realize that it still exists. Ok, it seems that thread has been moved, but I don't really think there is technical support over there, or is there? What I need is some help in trying to solve why security center is not shown in services.