# <h1>Simple script to restore some now-lost functionality during setup of new computers</h1>
# Originally hosted on, https://fives-useful-tools.github.io, trusted mirror: https://nro.lol
# If you run into issues please post them <a href="https://github.com/Fives-Useful-Tools/BypassNRO-Tool/issues">here</a>  <hr><pre>


# Locations and static parameters 
$RegistryPath = "HKLM:\Software\Microsoft\Windows\CurrentVersion\OOBE"
$ValueName = "BypassNRO"
$DesiredValue = 1
$PropertyType = "DWord"
$AskForReboot = 0

# Retrieve what's already in the registry first
$nroValue = Get-ItemProperty -Path $RegistryPath -Name $ValueName -ErrorAction SilentlyContinue

# If the setting is already in place ask the user what they want to do
if ($nroValue -and $nroValue.$ValueName -eq $DesiredValue) {

    $prompt = Read-Host "BypassNRO is already set. Revert/delete it? (Y/N)"

    if ($prompt -eq "Y" -or $prompt -eq "y") {
        try {
            Remove-ItemProperty -Path $RegistryPath -Name $ValueName | Out-Null
            Write-Host "Registry value '$ValueName' deleted."
        }
        catch {
            Write-Error "Failed to delete registry value: $($_.Exception.Message)."
            Write-Host "Please create an error report report at https://github.com/Fives-Useful-Tools/BypassNRO-Tool/issues"
        }
        $AskForReboot = 1
    } else {
        Write-Host "Action cancelled."
    }
} else {
    # Setting doesn't exist, create and set it
    try {
        # Create the setting and set it
        New-ItemProperty -Path $RegistryPath -Name $ValueName -Value $DesiredValue -PropertyType $PropertyType -Force | Out-Null
        Write-Host "Successfully added the $ValueName setting to the registry."
    }
    catch {
        Write-Error "Failed to create registry value: $($_.Exception.Message)"
    }
    $AskForReboot = 1
}

# The reboot part
if ($AskForReboot -eq 1) {
    $promptReboot = Read-Host "The previous change requires a reboot to apply. Reboot now? (Y/N)"

    if ($promptReboot -eq "Y" -or $promptReboot -eq "y") {
        Restart-Computer
        Write-Host "Rebooting..."
    } else { 
        Write-Host "Reboot cancelled. Please reboot at the earliest convenience to apply the changes"
    }
}