Random black box like the cmd prompt keeps appearing & disappearing...

[kennie42]

I logged on my computer today and it keeps popping up a black box like the command prompt then disappears, it doesn't happen all the time but every like hour or so. it's happened 5-6 times today. any idea what this is and how to fix it?

 

[USAFRet]

I logged on my computer today and it keeps popping up a black box like the command prompt then disappears, it doesn't happen all the time but every like hour or so. it's happened 5-6 times today. any idea what this is and how to fix it?

See this:
http://www.tomshardware.com/faq/id-3426393/fix-hourly-cmd-window-pop-appearing.html