New
#11
I'm not sure this will help, but I upgraded my laptop to Win10 and my desktop is still on Win8. I had set my Taskbar jumplists to 20 on my desktop Win8.1 machine, and the automatic syncing synced this setting to the laptop I just upgraded to Win10. So you might be able to create an account on some Win8 machine, set the jumplists there, and then sync this to you new Win10 machine.