I have a Levono All-In-One computer running Window 10. I thought I might have a viirus but Broni said no. My problem is two-fold. One if I leave the computer inactive it will naturally go into a sleep mode. When I return to use it by moving the mouse, nothing happens for sometime over a minute or even two. The HD light doesn't seem to blink during this time except the screen will go from black to a light haze, then after a time the desktop will appear. Then on many occasions, the chose app will appear but the mouse sticks or moves in a jerky way. It's almost like the CPU was running at 100% but I have proven that is not the case. i don't know if the one problem is connected to the other but they do happen at the same time.