only way I can access the internet is via the task manager
have the same problem
You can use Task Manager? That implies explorer.exe is not running, so what happens if you try and start it (e.g. via TM's File, Create New task command)? Note normally you would not want to choose ...with administrative privileges but that might help you get further in this circumstance. In any case, notice that there would be two possibilities for using it: with and without an operand. Without an operand you would just be trying to start the standard Desktop or Start Screen (according to your Taskbar Properties). With an operand (e.g. C:) you would be using it to open a File Explorer window.
And, of course, you could use Task Manager to start anything else that you thought might be helpful, including, in particular, msconfig.exe, which could allow you to change your boot options. E.g. try switching to Low res video (aka VGA mode) and see if you can get further that way. Etc.
Good luck
Robert Aldwinckle