Win7 Ctrl+Alt automatically press the solution of the problem

win7 Ctrl+Alt automatically press the problem
When writing the code, when browsing the webpage, scroll the mouse wheel font to zoom in and out. Or, pressing other keys will open some windows or close some windows, which is very depressed. It was discovered later that the win7 ctrl key or the alt key was automatically pressed.
The solution and reason have not been found, it is said to be caused by a patch of win7. There are also problems with input method shortcuts, in short, it should be shortcut key conflicts. I also tried shortcuts to uninstall or modify the input method, etc., and the result is invalid. . .
Suddenly thinking today, is it a qq shortcut, the result.... The result is true. . . . .
After I canceled the QQ hotkey, I didn't see the same problem in one afternoon.
Write it here as a reference, it seems that there are still many problems encountered.
QQ hotkey cancellation method:
Login QQ-select settings icon (Figure 1)

After opening the setup interface, follow the diagram below. Then change the conflicting shortcuts and select “hotkeys to conflict with other software when prompted. After the QQ shortcut key conflicts, the system will remind you that you will not find the reason. Hey. .