Disable-RDPRemotelyCIM.ps1

19 Sep 2025

• Description
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Description

Disable-RDPRemotelyCIM calls the Terminal Services CIM class on remote hosts and invokes SetAllowTSConnections to block Remote Desktop connections and clear the firewall exception. Provide one or more computer names (accepts pipeline input) and the function iterates over each system.

Usage examples

Disable-RDPRemotelyCIM -ComputerName 'srv-core01'
Get-Content .\servers.txt | Disable-RDPRemotelyCIM

Use the companion Enable-RDPRemotelyCIM function to re-enable connectivity when required.

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Script

function Disable-RDPRemotelyCIM {
    # You can also disable it using the below method.
    [CmdletBinding()]
    param (
        [Parameter()]
        [string[]]
        $ComputerName
    )

    foreach ($Computer in $ComputerName) {
        $Win32TerminalServiceSettings = Get-CimInstance -Namespace root/cimv2/TerminalServices -ClassName Win32_TerminalServiceSetting -ComputerName $Computer
        $Win32TerminalServiceSettings | Invoke-CimMethod -MethodName SetAllowTSConnections -Arguments @{AllowTSConnections=0;ModifyFirewallException=0} -ComputerName $Computer
    }
}

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Download

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