function Manage-BiosSettings {
    param (
        [Parameter(Mandatory=$true)]
        [ValidateSet('export', 'import')]
        [string]$Action,
        
        [Parameter()]
        [string]$FilePath = "bios_settings.txt"
    )

    # Ensure running as Administrator
    if (-not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
        throw "This script must be run as Administrator"
    }

    switch ($Action) {
        'export' {
            try {
                $biosSettings = gwmi -class Lenovo_BiosSetting -namespace root\wmi | 
                    Where-Object { $_.CurrentSetting -ne "" } | 
                    ForEach-Object { $_.CurrentSetting.replace(",", " = ") }
                
                $biosSettings | Out-File -FilePath $FilePath -Encoding UTF8
                Write-Host "BIOS settings exported to $FilePath"
            }
            catch {
                Write-Host "Error exporting BIOS settings: $_"
            }
        }
        
        'import' {
            try {
                if (-not (Test-Path $FilePath)) {
                    throw "Settings file not found: $FilePath"
                }

                $biosSettings = Get-Content $FilePath | Where-Object { $_ -match "=" }
                
                foreach ($setting in $biosSettings) {
                    $name, $value = $setting.Split("=").Trim()
                    $result = (Get-WmiObject -class Lenovo_SetBiosSetting -namespace root\wmi).SetBiosSetting("$name,$value")
                    
                    if ($result.return -eq "Success") {
                        Write-Host "Set $name to $value"
                    }
                    else {
                        Write-Host "Failed to set $name to $value"
                    }
                }

                $save = (Get-WmiObject -class Lenovo_SaveBiosSettings -namespace root\wmi).SaveBiosSettings()
                if ($save.return -eq "Success") {
                    Write-Host "All BIOS settings saved successfully"
                }
                else {
                    Write-Host "Failed to save BIOS settings"
                }
            }
            catch {
                Write-Host "Error importing BIOS settings: $_"
            }
        }
    }
}