SMBv1 Protocol¶

Check SMBv1¶

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# Local
Get-Item HKLM:\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters | ForEach-Object {Get-ItemProperty $_.pspath}
#Default configuration = Enabled (No registry key is created), so no SMB1 value will be returned

Disable SMBv1¶

1 2	# Local Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters" SMB1 -Type DWORD -Value 0 –Force

Enable SMBv1¶

1 2	# Local Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters" SMB1 -Type DWORD -Value 1 –Force

Note

You must restart the computer after you make these changes.