I have deplyed a gpo with an administrative template to block USB Pen Drives by changing the following registry value to ( 4 ).
HKEY_Local_machine\System\CurrentControlSet\Services\USBSTOR
If someone who has administrative rights change this to ( 3 ) mannualy, will it remain ( 3 ) untill a manual gpupdate /force happens in that PC or will it be changed to ( 4 ) at the next refresh interval of GPO in that PC.