# Get user profile service
$UserProfileService = @(Get-SPServiceApplication | ? { $_.TypeName -eq "User Profile Service Application" })[0]

if($UserProfileService)
{
    $serviceContext = [Microsoft.SharePoint.SPServiceContext]::GetContext($UserProfileService.ServiceApplicationProxyGroup, [Microsoft.SharePoint.SPSiteSubscriptionIdentifier]::Default);
    $profileManager = New-Object Microsoft.Office.Server.UserProfiles.UserProfileManager($serviceContext)

    # Get all profiles
    $allProfiles = $profileManager.GetEnumerator();

    $counter = 0;
    $decCounter = 0;

    # Loop through every profile
    foreach($profile in $allProfiles)
    {
        $counter++;
        $decCounter++;

        $url = $Profile['PictureURL'] -as [string];

        if($url)
        {
            # Create HTTP Request
            $req = [system.Net.WebRequest]::Create($url)
            $req.UseDefaultCredentials = $true
            try {
                $res = $req.GetResponse()
            }
            catch [System.Net.WebException] {
                $res = $_.Exception.Response
            }

            $int = [int]$res.StatusCode
            $status = $res.StatusCode

            # If the image cannot be accessed clear the field
            if($int -gt 400)
            {
                Write-Host -NoNewLine $Profile['PreferredName'] "profile picture broken "
                $Profile['PictureURL'].Value = $null;
                $Profile.Commit();
                Write-Host -ForegroundColor Green "[FIXED]";
            }
        }

        if($deccounter -eq 10)
        {
            Write-Host $counter" user profile checked";
            $decCounter=0;
        }
    }
}