I'm not sure if this is just on my 2 computers here, or if this would apply to most people, but before I used Aero's method of removing Cortana, my restarts would take a longggggg time, much longer than they did before the Anniversary update. ( aprox 10 secs to shutdown and start the reboot process, with the spinning circle just burning an image into my screen) Once I removed Cortana completely this morning, my restarts are back to being fast again. (aprox 2 secs to shutdown and start the reboot process) Is it a coincidence? Maybe, but I tend to think not. Of course, I do not know why this is, I just know that it happened on both my computers. That is NOT a coincidence.