Thread: Left CTRL key changed behavior

My Left CTRL key has taken on a support. Instead of simply being a ctrl key, it now feels that is beneath it, and instead it toggles the sound on or off whenever it's pressed. This happened recently, but I haven't consciously installed anything specific, and my sound card doesn't appear to have hotkeys to associate - although does show the mute symbol on its icon in the system tray when muted. Checked every setting I can find and updated all my Drivers. Please help me to solve this problem.

Different keyboard just to observe if the problem can be mimicked. If the result turns out negative, it's the keyboard that needs to be cleaned.

thanks. A new keyboard solve the problem. Will clean the old one to teach it a lesson and get back to organism just a lowly ctrl key.