Thank you very much.  That is just what I needed.
I have had  my 8500 hardwired to my wireless  router/modem under windows 10 for a long time and it works just fine.  Now I want to use it wireless but I can't get it wot work.  Am new (last summer) to Windows 10 don't understand how to do that.  The wireless adapter shows up under device manager and I can't  get it to work under Network and Sharing Center. Will someone please help me?  Thank you. 
Dell 8500 will not connect to a wire network