Keep sort or long recent file list

When you click Start> my recent document you can see a list of 15 file or document which have recently workdown. You can keep this list sort or long or empty. For this go to Star> Run. Then write gpedit.msc and click OK. Then User> Configuration> Administration> tamplates> Windows Components> Windows Explorer and dubble click on 'Maximum number of recen documents. Then click enable and you can see a dropdown list. Here you can select a number and then Apply> OK.