To be sure that GPO was
deployed correctly, you can use several
ways. The term for the results is called
RSoP – Resultant Sets of Policies.
Use gpresult
command in the command prompt.
The default result is
for the logged on user on that
machine. You can also choose to
check what is the results for other
users on to that machine. If you use
/v or /z switches you will get very
detailed information.
You can see what GPOs
were applied and what GPOs were
filtered out and the reason for not
being deployed.