I have a Windows 8 computer that is freezing several times a day. When I check the event log, I see that every time that this occurs the following event shows for a number of times: "the windows security center could not stop windows defender". When I restart (hard reset) the computer, it works fine again for a while. Happens for 2 / 3 times a day.
I am running Windows 8, Trend Micro for antivirus and further MS office (just an office computer). Windows Defender is turned off (the services are set to start manually).
To me it looks like Windows Defender becomes active where it cannot be stopped. Does anyone have experience with this or know where to look at?