If you just wanted to clear all the lists, simply re-tick the option and press Apply again. Click on the Start Menu tab and untick the option “Store and display recently opened items in the Start menu and the taskbar”, then click Apply. Right click on the Taskbar and select Properties. Disabling and then re-enabling the option also has the effect of clearing all Jump List entries. If you want to completely disable Jump Lists in windows it’s very easy to do.
Note the following methods work the same in Windows 7, 8.1 and 10 unless stated.
