Check the audio software i control panel, it probably has some hotkey setup.
can you please help me how to change or remove that hotkey, in realtek manager i couldn't find any hotkey.
send a pic of a screenshot of the sound device program (not the windows "sound") but the program from realtek or what sound you use.
hey bro' thanks for help! i reinstalled realtek audio driver but problem was still exist. i connect other keyboard and that one is work properly so problem was not in driver or any other software. perhaps there is something that make own key combination when i press ctrl+spacebar.