Q:

Eclipse : how can I disable this popup?

I'm sorry if this question has been ask before or can be found on the net. I have no idea how do I call this popup. I have no idea of the keyword to google. I tried "popup", "dialog", "confirmation" and a lot else but didn't success.
Back to the question, I've just migrate to my development machine and did fresh install for Eclipse. After that, I copy all the setting in workspace/.metadata folder from my previous machine to the new one. Everything looks fine (theme, key bindings and else) except that I have this popup appearing whenever I press some shortcut. For example, Ctrl+Space to bring up the code assist, the following dialog appears.

This popup never appeared before in my previous machine. It is annoying since I have to hit enter once every time I press those shortcut. Do you have any idea how can I turn this off?
Best
Note
I don't think this popup is code assist specific issue, I brought code assist up as an example. I also got this popup when I press shortcut to

Open Resource
Run
Refactor/Rename
Add getter/setter

and 10s other shortcut too. Also, I don't have conflict shortcut. Not that I know.

A:

This question may have been answered here already: Disable content assist in Eclipse
Refer to the following link for the documentation on Content Assist: http://help.eclipse.org/helios/index.jsp?topic=/org.eclipse.cdt.doc.user/reference/cdt_u_c_editor_con_assist.htm

The point is to disable the actions that trigger the Content Assist.

