diff --git a/install.ps1 b/install.ps1
index 168e6d4..71a7602 100644
--- a/install.ps1
+++ b/install.ps1
@@ -12,15 +12,18 @@ Say "下载最新代码到 $AppDir ..."
 New-Item -ItemType Directory -Force -Path $AppDir | Out-Null
 $gotCode = $false
 if (Get-Command git -ErrorAction SilentlyContinue) {
+  # git 会把正常进度写到 stderr,EAP=Stop 会误杀,此段临时放开
+  $ErrorActionPreference = "Continue"
   if (Test-Path (Join-Path $AppDir ".git")) {
-    git -C $AppDir fetch --all --quiet 2>$null
-    git -C $AppDir reset --hard origin/main --quiet 2>$null
-    $gotCode = $?
+    git -C $AppDir fetch --all --quiet
+    git -C $AppDir reset --hard origin/main --quiet
+    if ($LASTEXITCODE -eq 0) { $gotCode = $true }
   } else {
-    git clone --depth 1 "$BaseUrl.git" $AppDir 2>$null
-    if ($?) { $gotCode = $true }
+    git clone --depth 1 --quiet "$BaseUrl.git" $AppDir
+    if ($LASTEXITCODE -eq 0) { $gotCode = $true }
   }
-  if (-not $gotCode -and (Test-Path (Join-Path $AppDir "cli.py"))) { $gotCode = $true }
+  $ErrorActionPreference = "Stop"
+  if (-not $gotCode -and (Test-Path (Join-Path $AppDir "main.py"))) { $gotCode = $true }
 }
 if (-not $gotCode) {
   # git 不可用或失败:下载 zip 归档