I have already installed a antivirus software but on my windows security center it says it is not on

check ur anti virus if autoprotection is on. open the antivirus.

maybe in its settings it depends on ur anti virus.enable the autoprotection option.

I have already installed a antivirus software but on my windows security center it says it is not on.?panda

Did you just install it? If so, you might have to reboot.

Also, it would help to know what antivirus software you have.

I have already installed a antivirus software but on my windows security center it says it is not on.?suzuki

It depends on the antivirus. If its a free one you downloaded it probably wont. Security center only recangnized good ones.

Norton

MCafee

Windows one care

trendmicro

and other maintstreme