PowerShell method to remove old versions of installed modules

RemoveOldModules.ps1

function Remove-OldModules
{
    Write-Prompt "------------------------------------------" -ForegroundColor Cyan
    Write-Prompt "Removing old versions of installed modules" -ForegroundColor Cyan
    Write-Prompt "------------------------------------------" -ForegroundColor Cyan

    $modules = Get-InstalledModule
    Write-Prompt "$($modules.count) module(s) found." -ForegroundColor Yellow
    Write-Prompt ""
    foreach ($module in $modules)
    {
        $latest = Get-InstalledModule $module.name
        $installed = Get-InstalledModule $module.name -AllVersions
        Write-Prompt "$($installed.count) version(s) of this module found [$($module.name)] - Latest is $($latest.version)"

        foreach ($installedModule in $installed)
        {
            if ($installedModule.version -ne $latest.version)
            {
                Write-Prompt "Uninstalling $($installedModule.name) - $($installedModule.version)"
                $installedModule | Uninstall-Module -Force
            }
        }
        Write-Prompt "---------------------" -ForegroundColor Cyan
    }
    
    $prompt = Write-Prompt "Done removing old versions of installed modules" -ForegroundColor Cyan
    $prompt += "`n"
    $prompt += Write-Prompt "-----------------------------------------------" -ForegroundColor Cyan
    
    return $prompt
}