diff --git a/backend/internal/model/models.go b/backend/internal/model/models.go
index 10e75d4..71e0fd6 100644
--- a/backend/internal/model/models.go
+++ b/backend/internal/model/models.go
@@ -229,7 +229,6 @@ type Version struct {
 	EntryFile           string         `gorm:"size:255" json:"entry_file"`
 	EntryFiles          string         `gorm:"type:text" json:"entry_files"`                       // JSON数组，可启动的入口文件
 	DesktopShortcutFiles string        `gorm:"type:text" json:"desktop_shortcut_files"`            // JSON数组，需要创建桌面快捷方式的文件
-	AutoRun             bool           `gorm:"default:false" json:"auto_run"`                      // 是否自动运行
 	DefaultInstallDir   string         `gorm:"size:500" json:"default_install_dir"`                // 默认安装目录
 	UpdateStrategy      string         `gorm:"size:20;default:optional" json:"update_strategy"`
 	UpdateType          string         `gorm:"size:20;default:full" json:"update_type"`
diff --git a/backend/internal/router/admin/versions.go b/backend/internal/router/admin/versions.go
index 69a9edf..466bf8c 100644
--- a/backend/internal/router/admin/versions.go
+++ b/backend/internal/router/admin/versions.go
@@ -256,7 +256,6 @@ func handleGetVersionByID(c *gin.Context) {
 		"entry_file":              version.EntryFile,
 		"entry_files":             version.EntryFiles,
 		"desktop_shortcut_files":  version.DesktopShortcutFiles,
-		"auto_run":                version.AutoRun,
 		"default_install_dir":     version.DefaultInstallDir,
 		"full_package_path":       version.FullPackagePath,
 		"full_package_size":       version.FullPackageSize,
@@ -276,7 +275,6 @@ type CreateVersionRequest struct {
 	EntryFile             string             `json:"entry_file"`
 	EntryFiles            string             `json:"entry_files"`
 	DesktopShortcutFiles  string             `json:"desktop_shortcut_files"`
-	AutoRun               bool               `json:"auto_run"`
 	DefaultInstallDir     string             `json:"default_install_dir"`
 	UpdateStrategy        string             `json:"update_strategy"`
 	UpdateType            string             `json:"update_type"`
@@ -332,7 +330,6 @@ func handleCreateVersionGlobal(c *gin.Context) {
 		EntryFile:             req.EntryFile,
 		EntryFiles:            req.EntryFiles,
 		DesktopShortcutFiles:  req.DesktopShortcutFiles,
-		AutoRun:               req.AutoRun,
 		DefaultInstallDir:     req.DefaultInstallDir,
 		UpdateStrategy:        req.UpdateStrategy,
 		UpdateType:            req.UpdateType,
@@ -478,7 +475,6 @@ type UpdateVersionRequest struct {
 	EntryFile             string             `json:"entry_file"`
 	EntryFiles            string             `json:"entry_files"`
 	DesktopShortcutFiles  string             `json:"desktop_shortcut_files"`
-	AutoRun               bool               `json:"auto_run"`
 	DefaultInstallDir     string             `json:"default_install_dir"`
 	UpdateStrategy        string             `json:"update_strategy"`
 	UpdateType            string             `json:"update_type"`
@@ -547,7 +543,6 @@ func handleUpdateVersionGlobal(c *gin.Context) {
 	updates["entry_file"] = req.EntryFile
 	updates["entry_files"] = req.EntryFiles
 	updates["desktop_shortcut_files"] = req.DesktopShortcutFiles
-	updates["auto_run"] = req.AutoRun
 	updates["default_install_dir"] = req.DefaultInstallDir
 	if req.UpdateStrategy != "" {
 		updates["update_strategy"] = req.UpdateStrategy
diff --git a/backend/internal/router/app/info.go b/backend/internal/router/app/info.go
index 7383336..720de18 100644
--- a/backend/internal/router/app/info.go
+++ b/backend/internal/router/app/info.go
@@ -122,7 +122,6 @@ func handleAppCheckUpdate(c *gin.Context) {
 			"entry_file":             latestVersion.EntryFile,
 			"entry_files":            latestVersion.EntryFiles,
 			"desktop_shortcut_files": latestVersion.DesktopShortcutFiles,
-			"auto_run":               latestVersion.AutoRun,
 			"default_install_dir":    latestVersion.DefaultInstallDir,
 			"update_notes":           latestVersion.Description,
 			"update_strategy":        latestVersion.UpdateStrategy,
diff --git a/frontend/src/pages/admin/versions/[id].vue b/frontend/src/pages/admin/versions/[id].vue
index af0da8c..82fbb60 100644
--- a/frontend/src/pages/admin/versions/[id].vue
+++ b/frontend/src/pages/admin/versions/[id].vue
@@ -55,7 +55,6 @@ const formData = ref({
   entry_file: '',
   entry_files: [] as string[],
   desktop_shortcut_files: [] as string[],
-  auto_run: false,
   default_install_dir: '',
   file: null as File | null,
   base_version_id: '' as string,
@@ -68,6 +67,16 @@ const selectedApplication = computed(() => {
   return applications.value.find(app => String(app.id) === formData.value.application_id)
 })
 
+// 当应用选择变化时，自动设置默认安装目录
+watch(
+  () => selectedApplication.value,
+  (app) => {
+    if (app && !formData.value.default_install_dir) {
+      formData.value.default_install_dir = `C:\\Program Files\\${app.name}`
+    }
+  }
+)
+
 const baseVersionFiles = ref<VersionFileInfo[]>([])
 
 const mergedFiles = computed(() => {
@@ -146,7 +155,6 @@ async function fetchVersion() {
       formData.value.changelog = ver.changelog || ''
       formData.value.entry_file = ver.entry_file || ''
       formData.value.base_version_id = ver.base_version_id ? String(ver.base_version_id) : ''
-      formData.value.auto_run = ver.auto_run || false
       formData.value.default_install_dir = ver.default_install_dir || ''
       // 解析 entry_files JSON
       try {
@@ -371,7 +379,6 @@ async function handleSubmit() {
       entry_file: formData.value.entry_file,
       entry_files: JSON.stringify(formData.value.entry_files),
       desktop_shortcut_files: JSON.stringify(formData.value.desktop_shortcut_files),
-      auto_run: formData.value.auto_run,
       default_install_dir: formData.value.default_install_dir,
     }
 
@@ -693,14 +700,6 @@ onMounted(() => {
               <div class="space-y-4 rounded-lg border p-4">
                 <h4 class="font-medium">{{ t('admin.versions.createForm.installOptions') }}</h4>
 
-                <div class="flex items-center justify-between">
-                  <div class="space-y-0.5">
-                    <UiLabel class="text-sm">{{ t('admin.versions.createForm.autoRun') }}</UiLabel>
-                    <p class="text-xs text-muted-foreground">{{ t('admin.versions.createForm.autoRunDesc') }}</p>
-                  </div>
-                  <UiSwitch v-model="formData.auto_run" :disabled="saving" />
-                </div>
-
                 <div class="space-y-2">
                   <UiLabel class="text-sm">{{ t('admin.versions.createForm.defaultInstallDir') }}</UiLabel>
                   <UiInput
diff --git a/frontend/src/pages/admin/versions/create.vue b/frontend/src/pages/admin/versions/create.vue
index 4b36b31..95027f6 100644
--- a/frontend/src/pages/admin/versions/create.vue
+++ b/frontend/src/pages/admin/versions/create.vue
@@ -54,7 +54,6 @@ const formData = ref({
   entry_file: '',
   entry_files: [] as string[],
   desktop_shortcut_files: [] as string[],
-  auto_run: false,
   default_install_dir: '',
   file: null as File | null,
   base_version_id: '' as string,
@@ -67,6 +66,16 @@ const selectedApplication = computed(() => {
   return applications.value.find(app => String(app.id) === formData.value.application_id)
 })
 
+// 当应用选择变化时，自动设置默认安装目录
+watch(
+  () => selectedApplication.value,
+  (app) => {
+    if (app && !formData.value.default_install_dir) {
+      formData.value.default_install_dir = `C:\\Program Files\\${app.name}`
+    }
+  }
+)
+
 const baseVersionFiles = ref<VersionFileInfo[]>([])
 
 const mergedFiles = computed(() => {
@@ -337,7 +346,6 @@ async function handleSubmit() {
       entry_file: formData.value.entry_file,
       entry_files: JSON.stringify(formData.value.entry_files),
       desktop_shortcut_files: JSON.stringify(formData.value.desktop_shortcut_files),
-      auto_run: formData.value.auto_run,
       default_install_dir: formData.value.default_install_dir,
       file_path: uploadedData.value.file_path,
       file_size: uploadedData.value.file_size,
@@ -613,14 +621,6 @@ onMounted(() => {
               <div class="space-y-4 rounded-lg border p-4">
                 <h4 class="font-medium">{{ t('admin.versions.createForm.installOptions') }}</h4>
 
-                <div class="flex items-center justify-between">
-                  <div class="space-y-0.5">
-                    <UiLabel class="text-sm">{{ t('admin.versions.createForm.autoRun') }}</UiLabel>
-                    <p class="text-xs text-muted-foreground">{{ t('admin.versions.createForm.autoRunDesc') }}</p>
-                  </div>
-                  <UiSwitch v-model="formData.auto_run" :disabled="saving" />
-                </div>
-
                 <div class="space-y-2">
                   <UiLabel class="text-sm">{{ t('admin.versions.createForm.defaultInstallDir') }}</UiLabel>
                   <UiInput