diff --git a/src-tauri/src/winget.rs b/src-tauri/src/winget.rs
index 222a384..cc6edab 100644
--- a/src-tauri/src/winget.rs
+++ b/src-tauri/src/winget.rs
@@ -26,39 +26,35 @@ struct WingetPackage {
 }
 
 pub fn ensure_winget_dependencies(handle: &AppHandle) -> Result<(), String> {
-    emit_log(handle, "Check Environment", "Initializing system components and updating sources...", "info");
+    emit_log(handle, "Check Environment", "Performing fast environment check...", "info");
 
+    // 优化后的脚本：先尝试极速检测，存在则直接退出
     let setup_script = r#"
         $ErrorActionPreference = 'SilentlyContinue'
         
-        Write-Output "Step 1: Enabling TLS 1.2"
+        # 极速路径：如果模块已安装，直接输出 Success 并退出
+        if (Get-Module -ListAvailable Microsoft.WinGet.Client) {
+            Write-Output "ALREADY_READY"
+            exit 0
+        }
+
+        # 慢速路径：仅在模块缺失时执行完整初始化
+        Write-Output "CONFIGURING_ENV"
         [Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12
-        
-        Write-Output "Step 2: Forcing load of PackageManagement"
         Import-Module PackageManagement -ErrorAction SilentlyContinue
-        Import-Module PowerShellGet -ErrorAction SilentlyContinue
         
-        Write-Output "Step 3: Checking NuGet provider"
-        $provider = Get-PackageProvider -Name NuGet -ErrorAction SilentlyContinue
-        if ($null -eq $provider) {
+        if ($null -eq (Get-PackageProvider -Name NuGet -ErrorAction SilentlyContinue)) {
             Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force -Confirm:$false
         }
         
-        Write-Output "Step 4: Configuring Repository Trust"
         Set-PSRepository -Name 'PSGallery' -InstallationPolicy Trusted
-
-        Write-Output "Step 5: Setting Execution Policy"
         Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser -Force
         
-        Write-Output "Step 6: Checking Microsoft.WinGet.Client"
         if (-not (Get-Module -ListAvailable Microsoft.WinGet.Client)) {
-            Write-Output "Installing Winget Client module..."
             Install-Module -Name Microsoft.WinGet.Client -Force -AllowClobber -Scope CurrentUser -Confirm:$false
         }
-
-        Write-Output "Step 7: Updating Winget Sources (apt-get update style)"
-        # 这一步非常关键，确保 winget 的本地数据库是最新的
-        winget source update --accept-source-agreements
+        
+        # 注意：此处不再执行 winget source update，因为它太慢了，移至后台或按需执行
     "#;
     
     let output = Command::new("powershell")
@@ -68,22 +64,25 @@ pub fn ensure_winget_dependencies(handle: &AppHandle) -> Result<(), String> {
 
     match output {
         Ok(out) => {
-            let msg = String::from_utf8_lossy(&out.stdout).to_string();
-            let err = String::from_utf8_lossy(&out.stderr).to_string();
-            
-            let check_final = Command::new("powershell")
-                .args(["-NoProfile", "-Command", "Get-Module -ListAvailable Microsoft.WinGet.Client"])
-                .creation_flags(0x08000000)
-                .output();
-            
-            let is_success = check_final.map(|o| !o.stdout.is_empty()).unwrap_or(false);
-
-            if is_success {
-                emit_log(handle, "Environment Setup", "Winget module and sources are ready.", "success");
+            let stdout = String::from_utf8_lossy(&out.stdout).to_string();
+            if stdout.contains("ALREADY_READY") {
+                emit_log(handle, "Environment Setup", "Fast check passed: System is ready.", "success");
                 Ok(())
             } else {
-                emit_log(handle, "Environment Setup Error", &format!("OUT: {}\nERR: {}", msg, err), "error");
-                Err("Setup verification failed".to_string())
+                // 验证安装结果
+                let check = Command::new("powershell")
+                    .args(["-NoProfile", "-Command", "Get-Module -ListAvailable Microsoft.WinGet.Client"])
+                    .creation_flags(0x08000000)
+                    .output();
+                
+                if check.map(|o| !o.stdout.is_empty()).unwrap_or(false) {
+                    emit_log(handle, "Environment Setup", "Full configuration successful.", "success");
+                    Ok(())
+                } else {
+                    let err = String::from_utf8_lossy(&out.stderr).to_string();
+                    emit_log(handle, "Environment Setup Error", &format!("STDOUT: {}\nSTDERR: {}", stdout, err), "error");
+                    Err("Setup failed".to_string())
+                }
             }
         },
         Err(e) => {
@@ -121,6 +120,10 @@ pub fn list_updates(handle: &AppHandle) -> Vec<Software> {
         $OutputEncoding = [Console]::OutputEncoding = [System.Text.Encoding]::UTF8
         $ErrorActionPreference = 'SilentlyContinue'
         Import-Module Microsoft.WinGet.Client -ErrorAction SilentlyContinue
+        
+        # 在检查更新前，尝试静默更新源（可选，为了准确性）
+        # winget source update --accept-source-agreements | Out-Null
+
         $pkgs = Get-WinGetPackage -ErrorAction SilentlyContinue | Where-Object { $_.IsUpdateAvailable }
         if ($pkgs) {
             $pkgs | ForEach-Object { 
@@ -158,7 +161,7 @@ fn execute_powershell(handle: &AppHandle, cmd_name: &str, script: &str) -> Vec<S
             }
 
             if clean_json.is_empty() || clean_json == "[]" {
-                emit_log(handle, cmd_name, "No data returned from PowerShell.", "info");
+                emit_log(handle, cmd_name, "No data returned.", "info");
                 return vec![];
             }