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Connect to old SMB shares

Created by dave. Last edited by dave, 7 years and 212 days ago. Viewed 8,052 times. #6
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Vista can't connect to some old SMB shares (ie Lacie appliances, Samba shares)


  • Start -> run -> secpol.msc
  • Local Policies -> Security Options -> Network Security: LAN Manager Authentication
  • Change NTVLM2 responses only to LM and NTLM - use NTLMV2 session security if negotiated
If you are stuck with a Vista Home, there is no secpol.msc. Instead:
  • Start -> Run -> regedit
  • navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
  • for LmCompatibilityLevel, change the '3' to a '1'
  • Rebooting might be necessary at this point.
Note that if this registry key doesn't exist, you should be able to create it.
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