I am trying to apply a service through GPO Computer Management Preferences. I have an option that states "Apply Once And Never Apply Again".
Searching on this option comes up with this information:
If the Apply once and do not reapply option is selected, it changes this behavior, so the preference extension applies the results of the preference item to the user or computer only once. This option is useful when you do not want the results of a preference item to reapply.
Source: Apply once and do not reapply - What exactly this GPO setting means?
I want to know does this apply per computer when it restarts? Does that mean if I did a GPUpdate it will not reapply and try to start the service unless I put in an item to delete the RunOnce registry entry? I guess I am asking if the do once and not run again mean it only runs once ever unless you do a registry change?
"Apply once and do not reapply" means that the setting will be applied the first time the GPO is run against the target user or computer object, and isn't applied again on subsequent runs. It won't be re-applied on GPUpdate.
Think of this as setting a "get started" setting that the user can then change, for example setting a preference for the default homepage in IE to be www.example.com the first time a user logs in and generates their profile, but allowing the user to change the homepage themselves afterwards.
I can confirm the following happens after you change a file in the Unique ID source location on the Domain Controller but do not do anything else (i.e. un-tick/re-tick Apply Once) *when using the Replace option
When you change the files AND then change the Apply Once setting a new GUID will be created. Once group policy syncs machines recognize that change and update the files only once.
Additional information here: https://www.verboon.info/2013/05/how-to-reapply-a-group-policy-preference-that-is-configured-to-apply-once/