Filter button toggles off before choices made

  • When I try to choose my filters, it quickly toggles off. At times, it will allow me to uncheck a box but then quickly toggles off and doesn't accept my filter. I'm having the same issue in the help box. I cannot type in it. Have not noticed any other problems but these. Microsoft support has even tried to assist and we have uninstalled and reinstalled. I am using Excel 2016.