Today I launched my laptop, and when I hit the 3-finger gesture to open the search box, it blacked out the whole screen and then popped in the left part of my screen, taking more space than usual. It seemed weird to me, so I restarted. After restart, the problem seems to have gone, but not completely. Now I was able to capture a little bit of it. Once I again use a 3-finger gesture to pop up the search menu, it first fills up the space needed with black colour and then proceeds to animate. Here is a screenshot: Screenshot
As you can see here, gray background is filling up blank black space. Is there something wrong with my pc or just random bug of windows? My laptop is pretty fresh so I wouldn't like to allow any kind of virus or something into it.
Oh okay, I got first case after restarting explorer first case screenshot