Error when editing imported GPO

i have several group policies created in lab environment, exported , imported production environment using migration table.  both environments comprised of windows 2008 r2 servers.  1 of policies setting windows update settings domain.  if try go in , edit windows update settings in policy gives me error says:

"unhandles exception has occurred in component in application.  if click continue, application ignore error , attempt continue.

access denied. (exception hresult: 0x80070005 (e_accessdenied))"

if click continue setting trying make go ahead , take effect.  not seeing error in other imported gpos try edit.

i figured out problem was.  when importing cd-rom or isos, file copy part of import mark of files copied sysvol read-only.  added code script using import removes read-only attribute of files after import , fixed problem.

Windows Server  >  Group Policy