If the command prompt is popping up after a specific time then the most likely cause is the task scheduler. There are a number of things that can cause this. And, if the command prompt appears during your gaming session then it will most likely minimize your game because the command prompt takes the focus. Most of the users have complained about this appearing during their gaming sessions. after every hour or after every 47 minutes. It might also happen after a specific time e.g. It can happen only at the first login of the Windows or it might happen randomly from time to time during your usage of the computer. The pop up will disappear within a second and you most likely won’t be able to see what’s written in the command prompt.
If you are a Windows 10 user then you might notice the command prompt popping up on your screen.