For Windows 7
Open an Windows Command Prompt and enter the following to disable: -
sc config lanmanworkstation depend= bowser/mrxsmb10/nsi sc config mrxsmb20 start= disabled
To enabled, enter the following: –
sc config lanmanworkstation depend= bowser/mrxsmb10/mrxsmb20/nsi sc config mrxsmb20 start= auto
For Windows Server 2008
Run "regedit" on Windows Server 2008 based computer.
Expand and locate the sub tree as follows.
HKLMSystemCurrentControlSetServicesLanmanServerParameters
Add a new REG_DWORD key with the name of "Smb2" (without quotation mark)
Value name: Smb2 Value type: REG_DWORD 0 = disabled 1 = enabled
Set the value to 0 to disable SMB 2.0, or set it to 1 to re-enable SMB 2.0.
Reboot the server.