Can an administrator undo or correct a policy if a mistake is made?
AppLocker does not provide a way to undo an action. However, there is a slight delay in the application of policies, so you can change your rules if you still have the AppLocker snap-in open. The policy will take some time to propagate to a client computer that is joined to a domain, so you might be able delete the erroneous rules and create the correct ones before the policy is applied.
