The simplest way to overcome this is to restart in safe mode which requires you to know your bitlocker key. Your Microsoft account will access your bitlocker key so go their first and signon and get that then follow instructions to restart in safe mode including the network option - #5. When it boots, then click on the TT icon and that window will open and let you type (not paste) your code into it. Then click on the "Activate Now" button and it's done. then restart as normal and all is well. All the DPI settings excercise isn't necessary when the above method is done.
