Yesterday my computer notified me that the theme was changed to Windows 7 Basic Scheme or something like that. Unfortunately the message went away before I could click on it. Now, I don't know how to switch back to the old theme because the one it switched to is pretty irritating. I have attached a screenshot of what it looks like. I don't have any screenshots of the old theme I'm used to, but I'm sure it's the Default theme. Instead of blue at the top of a window you could see the desktop behind it... Anyway, I've tried different things, personalizing the themes, but that only seemed to make things worse. And I rebooted the computer yet I'm still using the new theme.
I would also like to know what I can do to prevent it from changing themes by itself. Hopefully you guys could help with this?
Screenshot of the new theme: