Have you ever think on how you can change the number of document recently shown on your recent Items menu?. By default only 10 items is can only be shown on your Recent Items but you can increase that with this easy registry tweak. As always please backup your registry first before you performing this tweak.
Open up regedit.exe
Navigate down and look for the following key
Add a new DWORD 32-bit value and named it MaxRecentDocs into the right-hand pane, and then double-click to open it up.
Change Base to Decimal then enter any value you want. For instance, if you want to set it to 30, enter that into the Value data field.