Windows 7: Disabling Screen Rotation Hotkeys

Hi,
I would like to disable the hotkeys for rotating screen (ctrl+alt+arrows) but I cannot.
In fact, I right clicked on desktop and from Graphic Options I chose Hot Keys and then ticked Disabled and this was fine for a few days.
But recently I see the hotkeys are still working although the Disabled choice is still selected in the mentioned menu. I suspect it might be because of one of the windows updates which is recently installed on my machine since the problem was created just after installing a set of updates.
Any ideas or people having the same problem?

I don't have those hotkeys, I would just un-install the software that enables these hotkeys, e.g. Intel Display Options, Nvidia Control Panel, ATI catalist software etc. You can have the driver installed and working without the software and configuration utilities installed!

Yes, for sure that is a solution, but logically there should be a way for keeping the software and having the hotkeys disabled.
The question is why they were properly disabled before and now suddenly they've decided to function without my permission ;-)!

Could be a number of things,

• The setting could be stored ini an .in file which lives in a temp folder, clearing your temp folders could have reverted to default settings.
• Updating the specific software could have caused loss of user customised settings.
• A system restore could have reverted the software to a previous state.
• Your computer doesn't like you and thought it would change the settings back just to **** you off.

If the problem persists it would be worth finding out how whichever software it is saves its settings and taking measures to protect them, e.g. if it's an .ini file change the permissions of the file once configured to prevent modification.

I deleted all my temporary files but the problem still persists
It's only 5 days that I've installed Windows and drivers, so I think there should not be a need for system restore and so on. I don't know how to find if the problem stems from an updated software and in fact which software makes the problem?
Any other ideas?

So you disabled the hotkeys and they have turned back on again, was this when you restarted the computer? Which software is it you are using?

Yes. I disabled them, and they were disabled in a few days but yesterday, after installing a couple of windows updates, they are enabled again.
The software should be either Intel Control Panel or NVIDIA Control Panel (actually I don't understand why two programs are installed on my machine for display adapter, but in device manager under display adapters I see both of them).

OK so they have stayed disabled since then? this would likely mean and update to display driver would often update the associated software.

Please fill out your system specs, it is unusual for the onboard intel graphics to still be enabled and detected by windows when there is a discrete graphics card installed.

It's not unusual anymore, the OP has an Nvidia Optimus graphics setup.

Bastani, you can diable HotKey functionality in Intel's Graphics options. Go to Options and Support section and uncheck Hotkey Functionality.

Thanks Teerex, I have already disabled them via the Intel Control Panel as you see in the attached image. But strangely they are still working!
It must have been caused by an update (since it happened after a Windows Update) but I couldn't find out which update and how to resolve the issue.
I really have to disable them since I'd like to use VirtuaWin to have multiple desktops and the hotkeys ctrl+alt+arrows are the standard ones for switching between desktops.