My brother had a command prompt pop-up window appear on his screen then disappear, few seconds later, a command prompt window pop-up appeared on my screen. I looked at the CMD window that showed for like 20 secs but nothing was in there, I was able to click the X button.
Why did this happen? how can I track it? Any information?
Has it happened since? Do you share installed programs or games? It sounds like it may have been a scheduled task.
As MasterChief pointed out in thread #2 the most common cause for this kind of thing is a scheduled task that launches a batch file of some kind (and thus, causes a command prompt window to appear on screen). Tracking these things down can be a real PITA, as I can attest from personal experience. Normally, if you get to inspect the window it will give you some clue as to what kind of process or program it's running. Back in December 2016, I wrote a blog post entitled "Take control of Windows tasks with TaskSchedulerView" where I explained my adventures in finding the cause of a similar pop-up command window. You might want to look this over, and see if it gives you any ideas on how to proceed. I'm not sure how one goes about determining which scheduled tasks have run on a Windows system recently, but I suspect there's a log somewhere that might provide some insight to help find answers to that question. I will observe, however, that your issue is much easier to handle if you can figure out which task is causing the window to appear.
HTH,
--Ed--
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