If you can't see Start on your taskbar, the taskbar may be hidden.
Show a hidden taskbar
- Press the Windows logo key + I, then select Personalization > Taskbar .
- Turn on Lock the taskbar.
- Turn off Automatically hide the taskbar in desktop mode or Automatically hide the taskbar in tablet mode.
If that doesn't resolve the issue you're experiencing, select any of the following headings to see steps you can try to get it working again.