The following message continually ( 1/2 times aweek) appears on my computer:- the message box is headed Windows Defender..."Application failed to initialize.Ox800106ba. A problem caused Windows Defender to stop. To start service restart your computer or search help and support on how to start a service manually." As far as I know I never use Windows Defender,how can I stop the message popping up?
As well as being a genuine Windows program, Defender is also a trojan/virus type thingy. I would run all your anti-everything programs and/or try a System Restore back a while before this nasty appeared.