You see that message in GPMC because some of the policy settings include account names, for example, the user rights assignment policies specify account names. Accounts with well-known SIDs like the built-in local Administrators group normally
don't cause this message to appear, its probably the account called "NT Service\WdiServiceHost." You can use a translation table during the GPMC import process to update account names and other some other details to match your specific environment
or you can manually update the GPO if any account names were fouled up during the import.Kurt Dillard http://www.kurtdillard.com
Kurt, I have removed all the defined rights in security settings Local policies -> User rights assignments. Then backup and import the settings -> No problem no security identifiers or unc paths found.
I then add Administrator group to access this computer from the network ( as test ) , the group gets resolved correctly when using the browse button. I then perform a backup again and import the settings -> A security identifier of unc path exists ->