Default should be 10 but you can change it with the Local Group Policy Editor if you have W7 Professional or Ultimate. If you have a Home version then you will need to edit the registry manually.
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To customize the size of the Start menu’s Recent Items list, follow these steps:
- In the Local Group Policy Editor, navigate to the User Configuration | Administrative Templates | Windows Components | Windows Explorer branch.
- Double-click the Maximum Number Of Recent Documents policy.
- Click Enabled.
- Use the Maximum Number Of Recent Documents spin box to specify the number of documents you want Windows 7 to display.
- Click OK.
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For the Registry equivalent, open the Registry Editor and display the following key:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Create a DWORD setting named MaxRecentDocs and set its value to the number of recent documents you want to display.
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