There are symptoms where a windows 7 shared folder cannot be accessed from a windows XP workstation in a domain

  1. d type regedit in the search box.
  2. Open the registry editor.
  3. Navigate all the way toHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionPoliciesSystem.
  4. Right-click in the pane on the right side and add a new DWORD (32-bit).
  5. Give the new setting the name LocalAccountTokenFilterPolicy.
  6. Double click on that setting and give it a value of 1.
  7. Restart the windows 7 PC