"windows can not find explorer.exe make sure you type the name correctly then try again. to search for a file, click the start button, then click search."
but we do not have a start button.
Hmm according to your computer one of the most important files is missing. You may ned to re-install windows. But don't do that just yet. I am going to point you to this http://www.geekstogo.com/forum/explorer-exe-missing-t86202.html
Tell me if anything progresses