Random fullscreen minimize

[Fireprufe15]

So I'm playing Deus Ex Human Revelution at full screen, and near the end of the game it randomly minimizes to the desktop. I thought it might just be the game, but later on, playing another game, it does the same. Now it does it every 10 to 20 minutes. I don't have any programs running in the background and my CPU and graphics card temperatures never go to high. This only recently started, but apart from Steam, I don't remember installing any new applications.

PS.: When it minimizes, there are no messages displayed or anything that can indicate that another program might be requesting to be on top. What could be the cause of this?

[Fireprufe15]

bump...People please help me this is really frustrating, I cant play fast paced games without getting killed

[flagstar]

Maybe it has something to do with some programs updating automatically in background which make force minimize on full screen programs like Anti Virus update etc.

Type this on Run > "msconfig" and tap Enter. Then click on startup tab and uncheck any unnecessary startup programs that you know except that run from system32 folders.

[jingda]

You might want to do a malware bytes scan just to be on the safe side although I have never heard of a malware that can randomly minimize screens. Does this happens when you are watching movies ( full screen ) or using other softwares that are full screen. If the problem happens to other softwares, it can be a setting problem.

[Fireprufe15]

Thanks flagstar and jingda. I went through every startup program one by one, and when I killed Java running on startup this didn't happen anymore. So it seems to me that Java or it's updater is the culprit. I also scanned for malware, but it seems that my PC is clean.