Win7 Ctrl + Alt automatic press

Win7 Ctrl + Alt automatically press the problem often write code, when browsing the Web page, scroll the scroll wheel font to zoom in and out. Or press another key to open or close some windows. It was found that the ctrl key or alt key of win7 was automatically pressed. Www.2cto.com has not found a solution and the reason is said to be caused by a patch of win7. There are also issues with the shortcut keys of the input method. In short, there should be a shortcut key conflict. I also tried to uninstall or modify the input method. The result is invalid... Suddenly today I was wondering, is it qq's shortcut key? The result... is true ..... After I canceled the QQ hotkey, the same problem did not occur in the afternoon. Let's write a reference here. It seems there are still many problems.