Microsoft.Policies.WindowsStore KB ID 0001817 Problem While working in the Group Policy Management tool, upon expanding administrative templates I got this error. Namespace ‘Microsoft.Policies.WindowsStore’ is already defined as the target namespace for another file in the store. Solution: Microsoft.Policies.WindowsStore Error This is because in your policy definitions there are two (four actually) files that are pointing to the same thing, and it’s not sure what to do. For central policy each “set of settings’ needs a setting file (ADMX) and a language file (ADML). there used...