Windows 7: Is there a Win7 setting that will disable Alt+tab function?

Would like to disable this key combo while in games full screen mode. I know this has been an issue for a number of years now, and I'm very surprised that windows hasn't addressed it with some kind of built-in setting option, but I will certainly accept any functioning workaround.

Hello Korby and welcome to Seven Forums.

I don't believe there's a built in way to disable Alt+Tab. But there's an open source program called AutoHotKey that should be able to do what you want.

Disable alt+tab with AutoHotKey

Using the Registry Edit, you have to create this key:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\AltTab

Inside that key, add a DWORD value named: LivePreview_ms
...and you set its value to 0.

When restart Windows Explorer to take effect. You can either log off and log back on to kill Explorer, or open Task Manager, end the EXPLORER.EXE process, and then use Task Manager's File -> Run to run EXPLORER.EXE
or simply restart your computer.

I'd like to say that your method works, but for some reason if I'm in a game specifically "Vindictus" it doesn't seem to disable the alt tab. I think that's the only occurrence. Wish there was a work around without using AHK. Thanks though ! I've tried a bunch of other method I've seen too but it just doesn't seem to be working. :/

Apparently it's things that run after the UAC promp, so it includes the regedit. But it does not always appear.