As you say SSCKbdHK, belongs to a Samsung program/process.
Use msconfig (from Start > Run) & disable all Samsung related programs from loading at Startup. Then reboot to see if the problem persists.
If no joy with that, try uninstalling the Samsung programs that contain SSCKbdHk.exe & dmhkcore.exe in their folders. Then confirm they've been removed & no longer run in Task Manager after a reboot.
If that doesn't work either, they may be one more thing to try. Get back if it doesn't & I'll tell you what to do. G