The page after you logon?
try disconnecting all your peripherals and see if it still does it, that will tell you if its one of them at fault
Try a clean boot:
http://www.thewindowsclub.com/what-is-clean-boot-state-in-windows that will tell you if its windows or one of your auto start programs instead
can also run Start up repair via the advanced start menu: http://sensorstechforum.com/windows-10-manual-advanced-startup-recovery-options/