Set Number of Recent Items to Show in Jump Lists on Windows 10
Launch the Run command window. To do this press the Windows key and R on the keyboard.
Type ‘regedit’ into the command field and click ‘Ok’.
Click ‘Yes’ when prompted by UAC.
The Registry Editor window is now opened.
Navigate the following path:
In the right hand pane of ‘Advanced’ key and look for a DWORD ‘Start_JumpListItems’. If it does not exist ‘right click’ on the??’Advanced’ key then ‘New’ > ‘DWORD (32-bit) value’, rename ‘New Value #1′ to??’Start_JumpListItems’
Double-click on ‘Start_JumpListItems’ to open its Edit, Select (Click) the radio button ‘Decimal’ and enter a number between 0 to 60. (I recommend 30)
Click the ‘OK’ button of the Edit window to save the changes. Note: you may need to reboot the system before the changes take effect.