I think what you are seeing are the "hidden" files that Windows usually doesn't display. The reason you are seeing them now is because you went into the View - Folder Options and unchecked the option to hide hidden and system files from view. You can turn that back on if you want and it should get rid of the files. By that I mean they are still there just as they always have been but you will not see them anymore.
Did you uncheck the option to hide hidden and system files ?

http://www.experts-exchange.com/Oper..._20672560.html

Scroll down and read the whole thread.