It's sufficient to delete switchboard.ini inside that folder and kill both Bridge.exe and SwitchBoard.exe. There's no need to restart the computer. Start, run,
for XP type:
del %HOMEDRIVE%%HOMEPATH%\Application Data\Adobe\SwitchBoard\switchboard.ini
for Windows Vista, 7 and newer type:
del %HOMEDRIVE%%HOMEPATH%\AppData\Roaming\Adobe\SwitchBoard\switchboard.ini
[ENTER]