I have had an unsolved problem for a long time, which I now finally want to get to the bottom of. So far, Google has spat out useless.
When I open Windows Defender, it starts checking briefly, but then the window always closes after about 1 second. It doesn't matter how I start the Defender (e.g. via the control panel or the maintenance center).
Does anyone happen to know any advice? Best thanks in advance!