My windows security center will not turn on. When I try to turn it on it says that it cannot be started. Also when I attemted to trouble shoot , I found that windows security center is not in my services.
I agree with wanamingo and also try to run sfc. you can do this by going to start>type in cmd>right-click on the black cmd icon and run as administrator. a box will pop up. type in "sfc /scannow" without the quotes.