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Whenever I click Alt + Arrow up/Arrow down my screen will do an unwanted flip. I'd like to disable this shortcut behaviour. I've already looked at Super User question How to stop my laptop's screen from rotating when I press Alt + Arrow?.

But Ctrl + Alt + F12 doesn't start any menu for me. How can I fix this problem?

I have an Nvidia graphic card, 2100M, and Windows 7 on a Toshiba computer.

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It's as if some arrogant car company made a dashboard button labeled cryptically "180". Complaints that sudden uncommanded 180-degree powerslides are extremely disorienting are met with stony indifference. – BobStein-VisiBone May 4 '15 at 11:12

Neither of these answers helped me. What I did:

Right-click on Desktop and select Graphics options > hotkeys > Disable

As indicated in Windows Forums and Microsoft Answers

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I needed to assign other hotkeys in the Intel Graphics options dialog. – remipod Jun 1 '15 at 8:52
Note to future readers: This does not seem to interfere with Windows shortcuts as I was fearing it might. – emragins Dec 8 '15 at 17:38
remipod is correct (see also Noxoreos's answer): You need to assign different shortcuts in the Intel thing, otherwise it still intercepts the keypresses and other programs can't use them. – Timmmm Apr 22 at 7:22

For these using Intel Graphic, to disable global hotkeys:

  • Right click on your Desktop and select:

enter image description here

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Normally, I am able to access the Intel Graphics from the system tray, but it was disabled for some reason. I was trying to raise and lower the volume on WinAmp, but it kept flipping the screen! – Sun Sep 22 '14 at 15:20

I had the exact same issue on an Acer notebook with an Intel graphics driver. Simply disabling the feature was not enough, since the keys are still captured and not passed to the system afterwards, even if the rotation did not happen.

That means I was still not able to use this key combination in any other software, because it won't receive the shortcut.

To solve this I opened the Intel graphics properties page, enabled shortcuts, changed all available shortcuts from Ctrl+Alt+(some key) to Ctrl+Shift+(some key), and finally deactivated it again. This way the Ctrl+Alt combination is captured only for the F8 key, which can't be changed, and all other shortcuts are captured by the software I wanted to use (like Eclipse or PHPStorm) - I rarely use the other combination, so this was a valid solution for me.

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Perfect. I needed to do this to enable the ctrl+alt+<- and ctrl+alt+-> shortcuts for changing tab in RStudio. – jbaums Jan 19 '15 at 0:36

Have a look at the Control Panel for the Nvidia Desktop Software and launch it. It should bring up a configuration Menu (for screen resolution, etc.) and there should be a Menu Item to disable the Hotkeys. IIRC it is the last Item.

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Will try to look at work tommorow, I've looked before but couldn't find it. Its a mobile graphic card NVS 2100M. – Warpzit Jan 3 '12 at 13:08
I really can't find it. I've looked inside the nvidia control panel under display -> change resolution and display -> rotate display. – Warpzit Jan 4 '12 at 8:41
up vote 2 down vote accepted

In some obscure place off the internet I found a solution.

Run msconfig (Windows key + R), select startup and disable Toshiba 180 Degrees Rotation Utility; then, click Apply and finally OK.

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