Last thing i did on my laptop was playing a game, which was 2 days ago this happened. I didn't open my laptop for 2 days as I had other stuff to do otherwhere. I come home, knowing nobody touched my laptop, opened it and in the lock screen there was a default wallpaper. First i was confused, but typed in my password and logged in, and second shock, my home screen was gone. There were only essential apps on screen (This pc, recycle bin, edge) and nothing more. And language was set default to russian. I was panicked and didn't know what to do. So just went to language settings with google translate help, and changed language, and pressed restart, hoping for nothing. But when laptop booted up again there was my lock screen, and my apps again all in their place. Nothing strange has happened since then, I've run antiviruses and stuff, only some trojan was found but I don't think that was the real problem there. So, what happened?