Windows : Setting LAN Authentication Level on 7 Home Premium

By | January 19, 2012

Windows 7 Home Premium doesn’t have the “Local Security Policy” console (aka : secpol.mmc). In order to access SMB share running the old protocol version, you need to enable the Authentication LAN Manager directly inside the registry.

Open the registry editor (Start > Run) :

regedit

Browse to :

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa

Create a new DWORD value  with the following properties :

LmCompatibilityLevel = 1