Disabling this setting disables server-side processing of the SMBv1 protocol. (Recommended.) Enabling this setting enables server-side processing of the SMBv1 protocol. (Default.) Changes to this setting require a reboot to take effect. For more information, see https://support.microsoft.com/kb/2696547 Fix: (1) GPO: Computer Configuration\Administrative Templates\MS Security Guide\Configure SMB v1 server (2) REG: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters!SMB1