Hello,
If you comfortable with Regedit you can try this
Click your Start Button, type regedit and hit Enter to open the Registry Editor
Navigate to:
HKEY_CURRENT_USER\Software\Microsoft\ Windows\CurrentVersion\Explorer\Advanced
On the right-side, look for an entry named "Start_JumpListItems".
Double click that DWORD and set its value to 20 or 30
Close the Registry Editor and restart your system

Thanks.
Basj,
Stardock Community Assistant.