diff --git a/scripts/install.ps1 b/scripts/install.ps1
index 2df2833..c46c2af 100644
--- a/scripts/install.ps1
+++ b/scripts/install.ps1
@@ -1,4 +1,4 @@
-# 設置顏色主題
+# set color theme
 $Theme = @{
     Primary   = 'Cyan'
     Success   = 'Green'
@@ -17,7 +17,7 @@ $Logo = @"
    ╚═════╝ ╚═════╝ ╚═╝  ╚═╝╚══════╝ ╚═════╝ ╚═╝  ╚═╝     ╚═╝     ╚═╝  ╚═╝ ╚═════╝  
 "@
 
-# 美化輸出函數
+# Beautiful Output Function
 function Write-Styled {
     param (
         [string]$Message,
@@ -40,7 +40,7 @@ function Write-Styled {
     }
 }
 
-# 獲取版本號函數
+# Get version number function
 function Get-LatestVersion {
     try {
         $latestRelease = Invoke-RestMethod -Uri "https://api.github.com/repos/yeongpin/cursor-free-vip/releases/latest"
@@ -54,28 +54,28 @@ function Get-LatestVersion {
     }
 }
 
-# 顯示 Logo
+# Show Logo
 Write-Host $Logo -ForegroundColor $Theme.Primary
 $releaseInfo = Get-LatestVersion
 $version = $releaseInfo.Version
 Write-Host "Version $version" -ForegroundColor $Theme.Info
 Write-Host "Created by YeongPin`n" -ForegroundColor $Theme.Info
 
-# 設置 TLS 1.2
+# Set TLS 1.2
 [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
 
-# 主安裝函數
+# Main installation function
 function Install-CursorFreeVIP {
     Write-Styled "Start downloading Cursor Free VIP" -Color $Theme.Primary -Prefix "Download"
     
     try {
-        # 獲取最新版本
+        # Get latest version
         Write-Styled "Checking latest version..." -Color $Theme.Primary -Prefix "Update"
         $releaseInfo = Get-LatestVersion
         $version = $releaseInfo.Version
         Write-Styled "Found latest version: $version" -Color $Theme.Success -Prefix "Version"
         
-        # 查找對應的資源
+        # Find corresponding resources
         $asset = $releaseInfo.Assets | Where-Object { $_.name -eq "CursorFreeVIP_${version}_windows.exe" }
         if (!$asset) {
             Write-Styled "File not found: CursorFreeVIP_${version}_windows.exe" -Color $Theme.Error -Prefix "Error"
@@ -86,22 +86,114 @@ function Install-CursorFreeVIP {
             throw "Cannot find target file"
         }
         
-        # 下載到Downloads文件夾
+        # Check if Downloads folder already exists for the corresponding version
         $DownloadsPath = [Environment]::GetFolderPath("UserProfile") + "\Downloads"
-        $downloadPath = Join-Path $DownloadsPath "CursorFreeVIP.exe"
+        $downloadPath = Join-Path $DownloadsPath "CursorFreeVIP_${version}_windows.exe"
         
-        Write-Styled "Downloading to Downloads folder..." -Color $Theme.Primary -Prefix "Download"
+        if (Test-Path $downloadPath) {
+            Write-Styled "Found existing installation file" -Color $Theme.Success -Prefix "Found"
+            Write-Styled "Location: $downloadPath" -Color $Theme.Info -Prefix "Location"
+            
+            # Check if running with administrator privileges
+            $isAdmin = ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
+            
+            if (-not $isAdmin) {
+                Write-Styled "Requesting administrator privileges..." -Color $Theme.Warning -Prefix "Admin"
+                
+                # Create new process with administrator privileges
+                $startInfo = New-Object System.Diagnostics.ProcessStartInfo
+                $startInfo.FileName = $downloadPath
+                $startInfo.UseShellExecute = $true
+                $startInfo.Verb = "runas"
+                
+                try {
+                    [System.Diagnostics.Process]::Start($startInfo)
+                    Write-Styled "Program started with admin privileges" -Color $Theme.Success -Prefix "Launch"
+                    return
+                }
+                catch {
+                    Write-Styled "Failed to start with admin privileges. Starting normally..." -Color $Theme.Warning -Prefix "Warning"
+                    Start-Process $downloadPath
+                    return
+                }
+            }
+            
+            # If already running with administrator privileges, start directly
+            Start-Process $downloadPath
+            return
+        }
+        
+        Write-Styled "No existing installation file found, starting download..." -Color $Theme.Primary -Prefix "Download"
+        
+        # Create WebClient and add progress event
         $webClient = New-Object System.Net.WebClient
         $webClient.Headers.Add("User-Agent", "PowerShell Script")
-        $webClient.DownloadFile($asset.browser_download_url, $downloadPath)
+
+        # Define progress variables
+        $Global:downloadedBytes = 0
+        $Global:totalBytes = 0
+        $Global:lastProgress = 0
+        $Global:lastBytes = 0
+        $Global:lastTime = Get-Date
+
+        # Download progress event
+        $eventId = [guid]::NewGuid()
+        Register-ObjectEvent -InputObject $webClient -EventName DownloadProgressChanged -Action {
+            $Global:downloadedBytes = $EventArgs.BytesReceived
+            $Global:totalBytes = $EventArgs.TotalBytesToReceive
+            $progress = [math]::Round(($Global:downloadedBytes / $Global:totalBytes) * 100, 1)
+            
+            # Only update display when progress changes by more than 1%
+            if ($progress -gt $Global:lastProgress + 1) {
+                $Global:lastProgress = $progress
+                $downloadedMB = [math]::Round($Global:downloadedBytes / 1MB, 2)
+                $totalMB = [math]::Round($Global:totalBytes / 1MB, 2)
+                
+                # Calculate download speed
+                $currentTime = Get-Date
+                $timeSpan = ($currentTime - $Global:lastTime).TotalSeconds
+                if ($timeSpan -gt 0) {
+                    $bytesChange = $Global:downloadedBytes - $Global:lastBytes
+                    $speed = $bytesChange / $timeSpan
+                    
+                    # Choose appropriate unit based on speed
+                    $speedDisplay = if ($speed -gt 1MB) {
+                        "$([math]::Round($speed / 1MB, 2)) MB/s"
+                    } elseif ($speed -gt 1KB) {
+                        "$([math]::Round($speed / 1KB, 2)) KB/s"
+                    } else {
+                        "$([math]::Round($speed, 2)) B/s"
+                    }
+                    
+                    Write-Host "`rDownloading: $downloadedMB MB / $totalMB MB ($progress%) - $speedDisplay" -NoNewline -ForegroundColor Cyan
+                    
+                    # Update last data
+                    $Global:lastBytes = $Global:downloadedBytes
+                    $Global:lastTime = $currentTime
+                }
+            }
+        } | Out-Null
+
+        # Download completed event
+        Register-ObjectEvent -InputObject $webClient -EventName DownloadFileCompleted -Action {
+            Write-Host "`r" -NoNewline
+            Write-Styled "Download completed!" -Color $Theme.Success -Prefix "Complete"
+            Unregister-Event -SourceIdentifier $eventId
+        } | Out-Null
+
+        # Start download
+        $webClient.DownloadFileAsync([Uri]$asset.browser_download_url, $downloadPath)
+
+        # Wait for download to complete
+        while ($webClient.IsBusy) {
+            Start-Sleep -Milliseconds 100
+        }
         
-        Write-Styled "Download completed!" -Color $Theme.Success -Prefix "Complete"
         Write-Styled "File location: $downloadPath" -Color $Theme.Info -Prefix "Location"
         Write-Styled "Starting program..." -Color $Theme.Primary -Prefix "Launch"
         
-        # 運行程序
+        # Run program
         Start-Process $downloadPath
-        
     }
     catch {
         Write-Styled $_.Exception.Message -Color $Theme.Error -Prefix "Error"
@@ -109,7 +201,7 @@ function Install-CursorFreeVIP {
     }
 }
 
-# 執行安裝
+# Execute installation
 try {
     Install-CursorFreeVIP
 }
@@ -120,4 +212,4 @@ catch {
 finally {
     Write-Host "`nPress any key to exit..." -ForegroundColor $Theme.Info
     $null = $Host.UI.RawUI.ReadKey('NoEcho,IncludeKeyDown')
-}
\ No newline at end of file
+}