You seem to have more than one problem. You can't do restore points. You can't start programs because of script. You are trying to use programs by OrBit. Windows script missing covers a gazillion things way above my head. What script? To give you a idea.
Windows Script Host - Wikipedia, the free encyclopedia
A repair and install could solve your script problems. I don't think we have all the pieces to the puzzle.
Have you had any Windows 7 activation problems.