SMB1Disable.ps1

Try {
    [string]$OperatingSystemVersion = (Get-WmiObject -Class Win32_OperatingSystem).Version    
    switch -Regex ($OperatingSystemVersion) {
        '(^10\.0.*|^6\.3.*)' 
            {
                # Windows 8.1 / Server 2012 R2 / Windows 10 / Server 2016
                
                # SMB1 Server Settings
                if ((Get-SmbServerConfiguration).EnableSMB1Protocol) {
                    Set-SmbServerConfiguration -EnableSMB1Protocol $false -Force
                }

                # SMB1 Client Settings
                if (((Get-WindowsOptionalFeature -Online -FeatureName SMB1Protocol).State) -match 'Enable(d|Pending)') {
                    Disable-WindowsOptionalFeature -Online -FeatureName SMB1Protocol -NoRestart
                }
            }
        '^6\.2.*' 
            {
                # Windows 8 / Server 2012
                
                # SMB1 Server Settings
                if ((Get-SmbServerConfiguration).EnableSMB1Protocol) {
                    Set-SmbServerConfiguration -EnableSMB1Protocol $false -Force
                }

                # SMB1 Client Settings
                if ((sc.exe qc lanmanworkstation) -match 'MRxSmb10') {
                    Start-Process -FilePath "$env:windir\System32\sc.exe" -ArgumentList 'config lanmanworkstation depend= bowser/mrxsmb20/nsi' -WindowStyle Hidden
                    Start-Process -FilePath "$env:windir\System32\sc.exe" -ArgumentList 'config mrxsmb10 start= disabled' -WindowStyle Hidden
                }
            }
        '^6\.(0|1).*'
            {
                # Windows Vista / Server 2008 / Windows 7 / Server 2008R2
                
                # SMB1 Server Settings
                if (((Get-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters" -Name SMB1 -ErrorAction SilentlyContinue).SMB1) -ne '0') {
                    Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters" -Name SMB1 -Type DWORD -Value 0 -Force -ErrorAction SilentlyContinue
                }

                # SMB1 Client Settings
                if ((sc.exe qc lanmanworkstation) -match 'MRxSmb10') {
                    Start-Process -FilePath "$env:windir\System32\sc.exe" -ArgumentList 'config lanmanworkstation depend= bowser/mrxsmb20/nsi' -WindowStyle Hidden
                    Start-Process -FilePath "$env:windir\System32\sc.exe" -ArgumentList 'config mrxsmb10 start= disabled' -WindowStyle Hidden
                }
            }
        default {
            Throw "Unsupported Operating System"
        }
    }

    Exit 0

} Catch {
    $LastError = $Error | Select-Object -First 1 -ExpandProperty Exception | Select-Object -ExpandProperty Message
    Write-Warning -Message $LastError
    Exit 1
}