I just upgraded to Windows 10 and file explorer won't open How can I get it to open?

[WPCentral Question]

I just upgraded to windows 10 and file explorer won't open

I just upgraded to window 10 and when I try to open my files using file explorer or the file tab in the tool bar the screen will flash for a split second as if it was going to open, but it just goes back to my desktop and does not open.