diff --git a/farmq-install-en.ps1 b/farmq-install-en.ps1
index 7c513c9..a4faf9e 100644
--- a/farmq-install-en.ps1
+++ b/farmq-install-en.ps1
@@ -111,12 +111,24 @@ function Install-Tailscale {
     
     Write-Info "Installing Tailscale for Windows..."
     
+    # Get latest Tailscale version
+    try {
+        Write-Status "Getting latest Tailscale version..."
+        $latestRelease = Invoke-RestMethod -Uri "https://api.github.com/repos/tailscale/tailscale/releases/latest" -UseBasicParsing
+        $version = $latestRelease.tag_name.TrimStart('v')
+        Write-Info "Latest version: $version"
+    }
+    catch {
+        Write-Warning "Failed to get latest version, using fallback"
+        $version = "1.86.2"
+    }
+    
     # Temporary download path
-    $tempPath = "$env:TEMP\tailscale-setup.exe"
-    $downloadUrl = "https://pkgs.tailscale.com/stable/tailscale-setup.exe"
+    $tempPath = "$env:TEMP\tailscale-setup-$version.exe"
+    $downloadUrl = "https://pkgs.tailscale.com/stable/tailscale-setup-$version.exe"
     
     try {
-        Write-Status "Downloading Tailscale..."
+        Write-Status "Downloading Tailscale from: $downloadUrl"
         Invoke-WebRequest -Uri $downloadUrl -OutFile $tempPath -UseBasicParsing
         
         Write-Status "Installing Tailscale... (please wait)"
diff --git a/farmq-install.ps1 b/farmq-install.ps1
index 6261ef4..12c9f48 100644
--- a/farmq-install.ps1
+++ b/farmq-install.ps1
@@ -1,7 +1,11 @@
-# 팜큐(FARMQ) Headscale Windows 원클릭 설치 스크립트
-# 사용법: 관리자 PowerShell에서 실행
+# FARMQ Headscale Windows One-Click Installation Script
+# Usage: Run in Administrator PowerShell
 # iex ((New-Object System.Net.WebClient).DownloadString('https://git.0bin.in/.../farmq-install.ps1'))
 
+# Set UTF-8 encoding for Korean characters
+$OutputEncoding = [Console]::OutputEncoding = [Text.UTF8Encoding]::UTF8
+[Console]::OutputEncoding = [Text.Encoding]::UTF8
+
 param(
     [switch]$Force,
     [string]$HeadscaleServer = "https://head.0bin.in",
@@ -32,68 +36,68 @@ function Write-Header {
 function Write-Status {
     param([string]$Message)
     Write-Host ""
-    Write-ColorOutput "🔧 $Message" "Blue"
+    Write-Host "[*] $Message" -ForegroundColor Blue
 }
 
 function Write-Success {
     param([string]$Message)
     Write-Host ""
-    Write-ColorOutput "✅ $Message" "Green"
+    Write-Host "[+] $Message" -ForegroundColor Green
 }
 
 function Write-Error {
     param([string]$Message)
     Write-Host ""
-    Write-ColorOutput "❌ $Message" "Red"
+    Write-Host "[!] ERROR: $Message" -ForegroundColor Red
 }
 
 function Write-Warning {
     param([string]$Message)
     Write-Host ""
-    Write-ColorOutput "⚠️  $Message" "Yellow"
+    Write-Host "[!] WARNING: $Message" -ForegroundColor Yellow
 }
 
 function Write-Info {
     param([string]$Message)
     Write-Host ""
-    Write-ColorOutput "📋 $Message" "Cyan"
+    Write-Host "[i] $Message" -ForegroundColor Cyan
 }
 
 # ================================
 # 시스템 요구사항 확인
 # ================================
 function Test-Requirements {
-    Write-Status "시스템 요구사항 확인 중..."
+    Write-Status "Checking system requirements..."
     
-    # 관리자 권한 확인
+    # Check administrator privileges
     $currentUser = [Security.Principal.WindowsIdentity]::GetCurrent()
     $principal = New-Object Security.Principal.WindowsPrincipal($currentUser)
     
     if (-NOT $principal.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
-        Write-Error "이 스크립트는 관리자 권한으로 실행해야 합니다."
-        Write-Info "다음 방법으로 다시 실행해주세요:"
-        Write-Info "1. Windows 키 + X → 'Windows PowerShell(관리자)' 클릭"
-        Write-Info "2. 스크립트 명령어 다시 실행"
+        Write-Error "This script requires administrator privileges."
+        Write-Info "Please restart using one of these methods:"
+        Write-Info "1. Windows Key + X -> 'Windows PowerShell (Admin)'"
+        Write-Info "2. Run the script command again"
         Write-Host ""
-        Read-Host "아무 키나 누르세요..."
+        Read-Host "Press any key to exit..."
         exit 1
     }
     
-    # Windows 버전 확인
+    # Check Windows version
     $osVersion = [System.Environment]::OSVersion.Version
     if ($osVersion.Major -lt 10) {
-        Write-Warning "Windows 10 이상을 권장합니다. 현재: Windows $($osVersion.Major).$($osVersion.Minor)"
+        Write-Warning "Windows 10 or later recommended. Current: Windows $($osVersion.Major).$($osVersion.Minor)"
     }
     
-    # 인터넷 연결 확인
+    # Check internet connection
     try {
-        Test-Connection "8.8.8.8" -Count 1 -Quiet | Out-Null
+        Test-NetConnection "8.8.8.8" -Port 53 -InformationLevel Quiet | Out-Null
     }
     catch {
-        Write-Warning "인터넷 연결을 확인해주세요."
+        Write-Warning "Please check your internet connection."
     }
     
-    Write-Success "시스템 요구사항 확인 완료"
+    Write-Success "System requirements check completed"
 }
 
 # ================================
@@ -113,12 +117,24 @@ function Install-Tailscale {
     
     Write-Info "Windows용 Tailscale 설치 중..."
     
+    # 최신 Tailscale 버전 확인
+    try {
+        Write-Status "최신 Tailscale 버전 확인 중..."
+        $latestRelease = Invoke-RestMethod -Uri "https://api.github.com/repos/tailscale/tailscale/releases/latest" -UseBasicParsing
+        $version = $latestRelease.tag_name.TrimStart('v')
+        Write-Info "최신 버전: $version"
+    }
+    catch {
+        Write-Warning "최신 버전 확인 실패, 기본 버전 사용"
+        $version = "1.86.2"
+    }
+    
     # 임시 다운로드 경로
-    $tempPath = "$env:TEMP\tailscale-setup.exe"
-    $downloadUrl = "https://pkgs.tailscale.com/stable/tailscale-setup.exe"
+    $tempPath = "$env:TEMP\tailscale-setup-$version.exe"
+    $downloadUrl = "https://pkgs.tailscale.com/stable/tailscale-setup-$version.exe"
     
     try {
-        Write-Status "Tailscale 다운로드 중..."
+        Write-Status "Tailscale 다운로드 중: $downloadUrl"
         Invoke-WebRequest -Uri $downloadUrl -OutFile $tempPath -UseBasicParsing
         
         Write-Status "Tailscale 설치 중... (잠시 기다려주세요)"