Hi, thanks for your feedback.
I already used the gpupdate-method but the problem is that this method only works when you are connected with your network to reach the domain controller. When being at home, gpupdate fails as it can't reach the DC.
net stop/start Start10 doesn't do the trick for me... settings are not applied.
PS: I change settings via: HKEY_CURRENT_USER\Software\Stardock\Start8\Start8.ini\Start8
Any other suggestions?