I set mine to 30 and it actually took immediately without a reboot. Right click it, select Modify and set Hexadecimal Value to what you want. On menu, click Edit > New > DWORD (32 bit) Value.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AdvancedĬlick on Advanced key. To change quantity of Jump List items, open RegEdit and navigate to: Folks shared that the following registry worked:
