You configure Hash Publication in the Group Policy Object Editor, within the Computer Configuration | Administrative Templates | Network | Lanman Server hierarchy.
Double-clicking Hash Publication For BranchCache in the details pane opens the Hash Publication for BranchCache dialog box, as shown in Figure 5-9.

FIGURE 5-9 Configuring Hash Publication For BranchCache.
Select Enabled to choose one of three settings:
– 0 = Allow hash publication only for shared folders on which BranchCache is enabled
– 1 = Disallow hash publication for all shared folders
– 2 = Allow hash publication for all shared folders