Question : Ctrl Key is blocked

Hello
From time to time, the Ctrl Key blockes (not mecanicaly) . So, if I press a "d" all windows are minimized (like Ctrl-d)
How can I unlock this, without rebooting the PC?
I have Win Vista Business.

Answer : Ctrl Key is blocked

Your Sticky Keys may be active, just open up the start menu and type "Sticky Keys" into the search bar, that should bring up the menu for it.

There should be a section with a checkbox titled "Turn on Sticky Keys".  Make sure that is not checked.