The New text file option missing in the new context menu

Yesterday I did some change to the windows registry, today I found when I right click mouse, cannot new a text file, this new text file option is missing, how strange, googled, found one solution to restore the default menu items, the website information address is as: http://www.sevenforums.com/tutorials/28677-new-context-menu-remove-restore-default-menu-items.html after restore the windows registry of the .txt item, the new text file option comes back again.