Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I'm not sure when this began, how it happens, or why it happens, but it is quite bothersome and apparently random.

Just randomly throughout the day my computer will just go to the desktop. I could be in a full screen game and it will just immediately alt tab and present the desktop. Or I could be watching a movie and this happens.

Sometimes it happens once every three hours and other times (just today actually) it did it twice in the span of 30 seconds.

I am positive I am not pressing a hotkey because I launched a game, sat idle, and noticed it alt tab while cleaning up around my room after about 20 minutes.

Sometimes it goes days without this happening.

Specs: Windows 7 Ultimate 64 Bit, 10 gigs of RAM, GeForce GTX 260, Intel Xeon CPU.

I also have basically nothing running when it happens other than the game and FireFox.

My FireFox add-ons: Adblock Plus, Download Statusbar, Firebug, FirePHP, lazarus form recovery, tree-style-tabs, yslow.

I doubt FireFox is causing the issue but I figured I'd include it anyway because it is the only application I have running when it happens.

As for user processes I have running: VCDDaemon (context menu for virtual clone drive), razerhid (mouse), OSD, taskhost, dmw (desktop window manager), anyfullscreengame, audiorepeater, netsession_win, explorer, razerofa, tsvncache, firefox, plugin-container, and EKIJ5000MUI (printer).

Whew. Okay. That was a lot of information. If someone could diagnose this I would be most grateful for this has been around with me for years.. Thanks for reading!

PS: I doubt it's a virus because I never download illegal software and pretty much only browse Reddit and Stackexchange and play games. If it was a virus it would be a pretty lame one.. Hah..

share|improve this question
    
does this happen only when you have Firefox running, or does it happen when you only have a game up? –  Nate Koppenhaver Nov 13 '11 at 19:50
2  
Lose focus or alt-tab? many things can pull focus away. Focus is the term they use for a programs window being activated, needing input, a notification, something finishing etc. –  Psycogeek Nov 13 '11 at 22:06
    
Good point Nate. I'll test it without Firefox running tonight to see if it causes the problem. –  Henry Scotts Nov 13 '11 at 23:22
    
Are the physical keys on the keyboard malfunctioning? Maybe they've been subject to spills, crumbs, or dust bunnies? If you unplug the keyboard (or use a different keyboard) does this issue still occur? –  Force Flow Nov 14 '11 at 23:46
    
I had a problem similar to this a while ago. It turned out to be the nVidia update checker stealing focus. I wrote a small program to get the name of the window with current focus to find out what it was doing it. I'll see if I still have a copy of it somewhere. –  Dracs Jul 19 '12 at 8:52

1 Answer 1

If you have excluded software issues, try another keyboard. Mine sometimes open start menu after pressing ECS - reason? - blocked CTRL key. Try pressing few times alt key, it might help

share|improve this answer

protected by Community Mar 25 '12 at 12:07

Thank you for your interest in this question. Because it has attracted low-quality answers, posting an answer now requires 10 reputation on this site.

Would you like to answer one of these unanswered questions instead?

Not the answer you're looking for? Browse other questions tagged or ask your own question.