Hello
gpresult /h gives several gpo object inaccessible, while this is not the case with GPMC. It seems it is what is described in "Failed to Open the Group Policy Object" Error Message Occurs When You Try to Open a Policy As a Domain Administrator , but it is not the case. How to rid off this, simple delete in ineffective.
This is one of the unsolved problem from czech forum.
Rgds
MiPu