I receive the error "Too many DDE channels open, close windows" when attempting to perform an action that opens Microsoft Word or Excel. This is usually associated with there being too many instances of Word or Excel running on your computer and they may be hidden in the background of Windows.
1. Open Task Manager (by clicking Ctrl+Alt+Del) 2. Click "More Details". If instead it says "Less Details" then skip this step. 3. Navigate down the list of Processes to Microsoft Word or Excel 4. Right click each Microsoft Word or Excel process and click "End Task"