If you're lucky, your Internet Explorer bookmarks are still in the Recycle Bin. Double-click the Recycle Bin icon on the desktop and select the Details view (the one that shows a row of information for each file). Click the Type column header to sort by file type. Look for files whose type is Internet Shortcut. When you find some that match your missing Favorites, right-click them and choose Restore. Some people organize their Favorites into submenus, which are stored as folders. If your Favorites included submenus you'll need to look through the items of type File Folder and restore any of those that came from your list of Favorites.
If the files aren't in the Recycle Bin you're pretty much out of luck. One thing you can do to recover the ones you use most is open the History panel in Internet Explorer, and revisit the sites you recognize as Favorites, then add them.
For the future you should create a user account for your grandson and log him in separately when you want to let him use the computer. Then unless he's a computer whiz he'll only be able to delete his own Favorites!
Source :
http://www.pcmag.com/
