diff --git a/README.md b/README.md
index 8b6cd7ce..78cda862 100644
--- a/README.md
+++ b/README.md
@@ -48,32 +48,37 @@
 
 Choose the installation method that best suits your needs:
 
+Linux (Recommended):
 ```bash
-# 1. Download pre-built binary (Recommended, All platforms supported)
-# Visit https://github.com/EasyTier/EasyTier/releases
+curl -fsSL "https://github.com/EasyTier/EasyTier/blob/main/script/install.sh?raw=true" | sudo bash -s install
+```
 
-# 2. Install via cargo (Latest development version)
-cargo install --git https://github.com/EasyTier/EasyTier.git easytier
-
-# 3. Install via Docker
-# See https://easytier.cn/en/guide/installation.html#installation-methods
-
-# 4. Linux Quick Install
-wget -O- https://raw.githubusercontent.com/EasyTier/EasyTier/main/script/install.sh | sudo bash -s install
-
-# 5. MacOS via Homebrew
+Homebrew (MacOS/Linux):
+```bash
 brew tap brewforge/chinese
 brew install --cask easytier-gui
-
-# 6. OpenWrt Luci Web UI
-# Visit https://github.com/EasyTier/luci-app-easytier
-
-# 7. (Optional) Install shell completions:
-easytier-core --gen-autocomplete fish > ~/.config/fish/completions/easytier-core.fish
-easytier-cli gen-autocomplete fish > ~/.config/fish/completions/easytier-cli.fish
-
 ```
 
+Windows (Recommended, run with administrator privileges):
+```powershell
+irm "https://github.com/EasyTier/EasyTier/blob/main/script/install.ps1?raw=true" | iex
+```
+
+Install via cargo (Latest development version): 
+```bash
+cargo install --git https://github.com/EasyTier/EasyTier.git easytier
+```
+
+[Install pre-built binary](https://github.com/EasyTier/EasyTier/releases) (Recommended, All platforms supported)
+
+[Install via Docker](https://easytier.cn/en/guide/installation.html#installation-methods)
+
+[Install OpenWrt ipk package](https://github.com/EasyTier/luci-app-easytier)
+
+Additional steps:
+
+[One-Click Register Service](https://easytier.cn/en/guide/network/oneclick-install-as-service.html) (Automatically start when the system boots and run in the background)
+
 ### 🚀 Basic Usage
 
 #### Quick Networking with Shared Nodes
diff --git a/README_CN.md b/README_CN.md
index b90560a1..2e9d31fa 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -48,33 +48,37 @@
 
 选择最适合您需求的安装方式：
 
+Linux（推荐）：
 ```bash
-# 1. 下载预编译二进制文件（推荐，支持所有平台）
-# 访问 https://github.com/EasyTier/EasyTier/releases
+curl -fsSL "https://github.com/EasyTier/EasyTier/blob/main/script/install.sh?raw=true" | sudo bash -s install
+```
 
-# 2. 通过 cargo 安装（最新开发版本）
-cargo install --git https://github.com/EasyTier/EasyTier.git easytier
-
-# 3. 通过 Docker 安装
-# 参见 https://easytier.cn/guide/installation.html#%E5%AE%89%E8%A3%85%E6%96%B9%E5%BC%8F
-
-# 4. Linux 快速安装
-wget -O- https://raw.githubusercontent.com/EasyTier/EasyTier/main/script/install.sh | sudo bash -s install
-
-# 5. MacOS 通过 Homebrew 安装
+Homebrew（MacOS/Linux）：
+```bash
 brew tap brewforge/chinese
 brew install --cask easytier-gui
-
-# 6. OpenWrt Luci Web 界面
-# 访问 https://github.com/EasyTier/luci-app-easytier
-
-# 7.（可选）安装 Shell 补全功能：
-# Fish 补全
-easytier-core --gen-autocomplete fish > ~/.config/fish/completions/easytier-core.fish
-easytier-cli gen-autocomplete fish > ~/.config/fish/completions/easytier-cli.fish
-
 ```
 
+Windows（推荐，请以管理员权限运行）：
+```powershell
+irm "https://github.com/EasyTier/EasyTier/blob/main/script/install.ps1?raw=true" | iex
+```
+
+通过 cargo 安装（最新开发版本）：
+```bash
+cargo install --git https://github.com/EasyTier/EasyTier.git easytier
+```
+
+[下载预编译文件](https://github.com/EasyTier/EasyTier/releases)（推荐，支持所有平台）
+
+[通过 Docker 安装](https://easytier.cn/guide/installation.html#%E5%AE%89%E8%A3%85%E6%96%B9%E5%BC%8F)
+
+[安装 OpenWrt ipk 软件包](https://github.com/EasyTier/luci-app-easytier)
+
+附加步骤：
+
+[一键注册系统服务](https://easytier.cn/guide/network/oneclick-install-as-service.html)（系统启动时自动后台运行）
+
 ### 🚀 基本用法
 
 #### 使用共享节点快速组网
diff --git a/script/install.ps1 b/script/install.ps1
new file mode 100644
index 00000000..9a5891fc
--- /dev/null
+++ b/script/install.ps1
@@ -0,0 +1,234 @@
+<#
+.SYNOPSIS
+    EasyTier Windows Installer
+
+.DESCRIPTION
+    Download EasyTier from GitHub Release and install it.
+    Copies binaries to the install directory and updates the system PATH.
+
+.PARAMETER Version
+    Target version: "latest", "stable", or a specific tag like "v2.5.0".
+    Default: "latest"
+
+.PARAMETER InstallDir
+    Directory to install EasyTier binaries.
+    Default: "$env:ProgramFiles\EasyTier"
+
+.EXAMPLE
+    .\install.ps1
+    .\install.ps1 -Version v2.5.0
+    .\install.ps1 -InstallDir "C:\EasyTier"
+
+.NOTES
+    Administrator privileges are required.
+    After installation, run: easytier-cli service install
+    to register EasyTier as a system service.
+#>
+param(
+    [Parameter(Position = 0)]
+    [ValidatePattern('^(stable|latest|v?\d+\.\d+\.\d+(-[^\s]+)?)$')]
+    [string]$Version = 'latest',
+
+    [Parameter(Position = 1)]
+    [string]$InstallDir = "$env:ProgramFiles\EasyTier"
+)
+
+Set-StrictMode -Version Latest
+$ErrorActionPreference = 'Stop'
+$ProgressPreference = 'SilentlyContinue'
+
+# Force TLS 1.2+ for GitHub API and download requests
+[Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12
+
+# ---------------------------------------------------------------------------
+# Constants
+# ---------------------------------------------------------------------------
+$GITHUB_REPO        = 'EasyTier/EasyTier'
+$GITHUB_API         = "https://api.github.com/repos/$GITHUB_REPO"
+$GITHUB_RELEASE_URL = "https://github.com/$GITHUB_REPO/releases"
+
+# ---------------------------------------------------------------------------
+# Administrator check
+# ---------------------------------------------------------------------------
+$currentPrincipal = [Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()
+if (-not $currentPrincipal.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
+    Write-Error 'Please run this script as Administrator.'
+    exit 1
+}
+
+# ---------------------------------------------------------------------------
+# Architecture detection
+# ---------------------------------------------------------------------------
+# Check PROCESSOR_ARCHITEW6432 first to correctly identify 64-bit OS when
+# running under 32-bit PowerShell (WoW64), where PROCESSOR_ARCHITECTURE
+# reports 'x86' even on a 64-bit machine.
+$cpuArch = if ($env:PROCESSOR_ARCHITEW6432) { $env:PROCESSOR_ARCHITEW6432 } else { $env:PROCESSOR_ARCHITECTURE }
+switch ($cpuArch) {
+    'AMD64' { $arch = 'x86_64' }
+    'ARM64' { $arch = 'arm64'  }
+    'x86'   { $arch = 'i686'   }
+    default {
+        Write-Error "Unsupported processor architecture: $cpuArch"
+        exit 1
+    }
+}
+$assetBaseName = "easytier-windows-$arch"
+
+Write-Host ''
+Write-Host '  ===============================================' -ForegroundColor Cyan
+Write-Host '        EasyTier Windows Installer              ' -ForegroundColor Cyan
+Write-Host '  ===============================================' -ForegroundColor Cyan
+Write-Host ''
+Write-Host "  Architecture : $arch" -ForegroundColor White
+Write-Host ''
+
+# ---------------------------------------------------------------------------
+# Step 1 - Resolve release version
+# ---------------------------------------------------------------------------
+Write-Host '[1/5] Querying GitHub Release info...' -ForegroundColor Yellow
+
+try {
+    if ($Version -eq 'latest' -or $Version -eq 'stable') {
+        $releaseInfo = Invoke-RestMethod `
+            -Uri "$GITHUB_API/releases/latest" `
+            -Headers @{ 'User-Agent' = 'EasyTier-Installer/1.0' } `
+            -ErrorAction Stop
+    }
+    else {
+        $tag = if ($Version -notmatch '^v') { "v$Version" } else { $Version }
+        $releaseInfo = Invoke-RestMethod `
+            -Uri "$GITHUB_API/releases/tags/$tag" `
+            -Headers @{ 'User-Agent' = 'EasyTier-Installer/1.0' } `
+            -ErrorAction Stop
+    }
+}
+catch {
+    Write-Error "Failed to fetch release info from GitHub: $_`nPlease check your network or visit $GITHUB_RELEASE_URL to download manually."
+    exit 1
+}
+
+$releaseVersion = $releaseInfo.tag_name
+$assetZipName   = "$assetBaseName-$releaseVersion.zip"
+
+Write-Host "  Version : $releaseVersion" -ForegroundColor Green
+
+# ---------------------------------------------------------------------------
+# Step 2 - Find download URL
+# ---------------------------------------------------------------------------
+Write-Host ''
+Write-Host '[2/5] Resolving download URL...' -ForegroundColor Yellow
+$asset = $releaseInfo.assets |
+    Where-Object { $_.name -eq $assetZipName } |
+    Select-Object -First 1
+
+if (-not $asset) {
+    $availableAssets = ($releaseInfo.assets | Select-Object -ExpandProperty name) -join ', '
+    Write-Error "Asset '$assetZipName' not found in release $releaseVersion.`nAvailable: $availableAssets`nVisit $GITHUB_RELEASE_URL to download manually."
+    exit 1
+}
+
+$downloadUrl = $asset.browser_download_url
+Write-Host "  URL     : $downloadUrl" -ForegroundColor DarkGray
+
+# ---------------------------------------------------------------------------
+# Step 3 - Download ZIP
+# ---------------------------------------------------------------------------
+Write-Host ''
+Write-Host "[3/5] Downloading $assetZipName ..." -ForegroundColor Yellow
+
+$tempDir = Join-Path $env:TEMP "easytier-install-$(Get-Random)"
+$zipPath = Join-Path $tempDir $assetZipName
+
+New-Item -ItemType Directory -Force -Path $tempDir | Out-Null
+
+try {
+    Invoke-WebRequest -Uri $downloadUrl -OutFile $zipPath -ErrorAction Stop
+    $sizeMB = [math]::Round((Get-Item $zipPath).Length / 1MB, 2)
+    Write-Host "  Download complete ($sizeMB MB)" -ForegroundColor Green
+}
+catch {
+    Write-Error "Download failed: $_"
+    Remove-Item -Recurse -Force $tempDir -ErrorAction SilentlyContinue
+    exit 1
+}
+
+# ---------------------------------------------------------------------------
+# Step 4 - Extract & copy to install directory
+# ---------------------------------------------------------------------------
+Write-Host ''
+Write-Host '[4/5] Extracting and copying files...' -ForegroundColor Yellow
+
+$extractDir = Join-Path $tempDir 'extracted'
+New-Item -ItemType Directory -Force -Path $extractDir | Out-Null
+
+try {
+    Expand-Archive -Path $zipPath -DestinationPath $extractDir -Force -ErrorAction Stop
+}
+catch {
+    Write-Error "Extraction failed: $_"
+    Remove-Item -Recurse -Force $tempDir -ErrorAction SilentlyContinue
+    exit 1
+}
+
+# ZIP may contain a sub-directory; find exe files recursively and flatten
+$exeFiles = Get-ChildItem -Path $extractDir -Filter '*.exe' -Recurse
+if (-not $exeFiles) {
+    Remove-Item -Recurse -Force $tempDir -ErrorAction SilentlyContinue
+    Write-Error 'No .exe files found after extraction. The ZIP may be malformed.'
+    exit 1
+}
+
+$binSourceDir = $exeFiles[0].DirectoryName
+
+try {
+    New-Item -ItemType Directory -Force -Path $InstallDir | Out-Null
+    Get-ChildItem -Path $binSourceDir | Copy-Item -Destination $InstallDir -Force
+}
+catch {
+    Remove-Item -Recurse -Force $tempDir -ErrorAction SilentlyContinue
+    Write-Error "Failed to copy files to install directory: $_"
+    exit 1
+}
+
+Write-Host "  Installed to: $InstallDir" -ForegroundColor Green
+
+# ---------------------------------------------------------------------------
+# Step 5 - Update system PATH
+# ---------------------------------------------------------------------------
+Write-Host ''
+Write-Host '[5/5] Updating system PATH...' -ForegroundColor Yellow
+
+$systemPath = [Environment]::GetEnvironmentVariable('PATH', 'Machine')
+# Split on ';' and normalize (trim trailing backslash, case-insensitive) for an exact match
+$pathEntries = $systemPath -split ';' | ForEach-Object { $_.TrimEnd('\') }
+$normalizedInstallDir = $InstallDir.TrimEnd('\')
+if ($pathEntries -inotcontains $normalizedInstallDir) {
+    [Environment]::SetEnvironmentVariable('PATH', "$systemPath;$InstallDir", 'Machine')
+    $env:PATH = "$env:PATH;$InstallDir"
+    Write-Host "  Added $InstallDir to system PATH" -ForegroundColor Green
+}
+else {
+    Write-Host "  $InstallDir is already in PATH, skipping" -ForegroundColor DarkGray
+}
+
+# ---------------------------------------------------------------------------
+# Cleanup
+# ---------------------------------------------------------------------------
+try {
+    Remove-Item -Recurse -Force $tempDir -ErrorAction SilentlyContinue
+}
+catch {
+    Write-Warning "Could not remove temp dir $tempDir : $_"
+}
+
+# ---------------------------------------------------------------------------
+# Done
+# ---------------------------------------------------------------------------
+Write-Host ''
+Write-Host "  [OK] EasyTier $releaseVersion installation complete!" -ForegroundColor Green
+Write-Host ''
+Write-Host "  Install dir : $InstallDir" -ForegroundColor White
+Write-Host '  User guide  : https://easytier.cn/en/guide/network/decentralized-networking.html' -ForegroundColor DarkGray
+Write-Host ''
+Write-Host '  NOTE: If PATH was just updated, please restart your terminal.' -ForegroundColor DarkYellow
+Write-Host ''