If a server was once joined to an Active Directory Domain and had certain policies applied and then removed from the domain--are all policies reverted back to default, or simply removed as well as, is it possible for these settings to remain on the server once it gets removed and re-booted? The reason I ask is, I have an application in which it has been recommended by the manufacturer to first remove it from a domain if an upgrade is needed to eliminate the chance of AD GPOs impacting the upgrade process. But, I get people who state after removing the server, it still has problems and must still have policies applied. Is this possible? I know it may depend on what was applied in these GPOs such as registry settings etc. but can a server be impacted after it removed from the domain? I have ran gpresults after removal and it states no policies applied as well. Thanks!