Powershell Script referenced by http://behind-monitor.blogspot.com/ This Script resets the Internet Explorer settings to default values. It requires user interaction and requests the User to close all Internet Explorer windows.

ResetIESettings.ps1

<#
.SYNOPSIS
    This Script resets the Internet Explorer settings to default values
.DESCRIPTION
    This Script resets the Internet Explorer settings to default values.
    It requires user interaction and requests the User to close all Internet Explorer windows.
.NOTES
    FileName         : ResetIESettings.ps1
    Version          : 1.0
    Author           : Daniel Müller (chdanielmueller)
    Last modified by : Daniel Müller (chdanielmueller)
.EXAMPLE
    Psh> ResetIESettings.ps1
#>


## Start Variables

# Default Variables
$arrProcs = "iexplore"
$continue = $false

## End Variables


## Start Script

Write-Host "Reset Internet Explorer settings"

# Load Assembly
[void][reflection.assembly]::Load("System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")

do {
    # Check for an open Internet Explorer
    $arrRunning = @()
    foreach ($proc in $arrProcs) {
        if(((get-process $proc -ea SilentlyContinue) -ne $Null)){
            $arrRunning += $proc
        }
    }

    # Internet Explorer is running
    if ($arrRunning.length -gt 0) {
        $d = [System.Windows.Forms.MessageBox]::Show(
            "There are currently one or more Internet Explorer windows open.`n`nYou must close all Internet Explorer windows before reset it to default.",
            "Reset IE Settings to Default",
            [System.Windows.Forms.MessageBoxButtons]::RetryCancel,
            [System.Windows.Forms.MessageBoxIcon]::Warning
        )

        if ($d -eq [Windows.Forms.DialogResult]::Cancel) {
            exit
        }

    # Internet Explorer is not running
    } else {
        $continue = $true
        Write-Host "No IE processes are currently running" -foregroundcolor green
        Write-Host "Please click on the `"Reset`" button" -foregroundcolor yellow
        # Open reset settings window
        & RunDll32.exe InetCpl.cpl,ResetIEtoDefaults | Out-Null
        Write-Host  "Resetting Done" -foregroundcolor green
    }

} while ($continue -eq $false)

## End Script