diff --git a/varManager_backend/src/api/mod.rs b/varManager_backend/src/api/mod.rs
index ad2d461..40945a7 100644
--- a/varManager_backend/src/api/mod.rs
+++ b/varManager_backend/src/api/mod.rs
@@ -654,6 +654,23 @@ fn normalize_optional(value: Option<String>) -> Option<String> {
     })
 }
 
+/// Normalize vam_exec: if user provides a full path, extract just the filename.
+/// The system always combines vampath + vam_exec, so only the filename is needed.
+fn normalize_vam_exec(value: Option<String>) -> Option<String> {
+    normalize_optional(value).map(|s| {
+        let path = std::path::Path::new(&s);
+        if path.is_absolute() || s.contains('\\') || s.contains('/') {
+            // Extract filename from path
+            path.file_name()
+                .and_then(|n| n.to_str())
+                .map(|n| n.to_string())
+                .unwrap_or(s)
+        } else {
+            s
+        }
+    })
+}
+
 fn normalize_proxy(mut proxy: crate::app::ProxyConfig) -> crate::app::ProxyConfig {
     proxy.host = proxy.host.trim().to_string();
     proxy.username = normalize_optional(proxy.username);
@@ -702,7 +719,7 @@ fn apply_config_update(current: &Config, req: UpdateConfigRequest) -> Result<Con
         next.vampath = normalize_optional(req.vampath);
     }
     if req.vam_exec.is_some() {
-        next.vam_exec = normalize_optional(req.vam_exec);
+        next.vam_exec = normalize_vam_exec(req.vam_exec);
     }
     if req.downloader_save_path.is_some() {
         next.downloader_save_path = normalize_optional(req.downloader_save_path);
diff --git a/varManager_backend/src/infra/system_ops.rs b/varManager_backend/src/infra/system_ops.rs
index e18ba04..c972148 100644
--- a/varManager_backend/src/infra/system_ops.rs
+++ b/varManager_backend/src/infra/system_ops.rs
@@ -3,9 +3,17 @@ use crate::app::AppState;
 use serde_json::json;
 use std::fs;
 use std::path::{Path, PathBuf};
-use std::process::Command;
+use std::process::{Command, Stdio};
 use sysinfo::{ProcessesToUpdate, System};
 
+#[cfg(windows)]
+use std::os::windows::process::CommandExt;
+
+#[cfg(windows)]
+const CREATE_NEW_PROCESS_GROUP: u32 = 0x00000200;
+#[cfg(windows)]
+const CREATE_NO_WINDOW: u32 = 0x08000000;
+
 const DEFAULT_VAM_EXEC: &str = "VaM (Desktop Mode).bat";
 
 pub fn start_vam(state: &AppState) -> Result<(), String> {
@@ -31,19 +39,7 @@ pub fn start_vam(state: &AppState) -> Result<(), String> {
         return Err(format!("vam executable not found: {}", exec_path.display()));
     }
 
-    if is_cmd_script(&exec_path) {
-        let exec = format!("\"{}\"", exec_path.to_string_lossy());
-        Command::new("cmd")
-            .args(["/C", exec.as_str()])
-            .current_dir(&vampath)
-            .spawn()
-            .map_err(|err| err.to_string())?;
-    } else {
-        Command::new(&exec_path)
-            .current_dir(&vampath)
-            .spawn()
-            .map_err(|err| err.to_string())?;
-    }
+    spawn_detached(&exec_path, &vampath)?;
     Ok(())
 }
 
@@ -108,3 +104,48 @@ fn is_cmd_script(path: &Path) -> bool {
         .map(|ext| ext.eq_ignore_ascii_case("bat") || ext.eq_ignore_ascii_case("cmd"))
         .unwrap_or(false)
 }
+
+/// Spawn a process fully detached from the parent.
+/// This prevents the child from blocking on inherited stdin/stdout/stderr handles.
+#[cfg(windows)]
+fn spawn_detached(exec_path: &Path, working_dir: &Path) -> Result<(), String> {
+    if is_cmd_script(exec_path) {
+        // For bat/cmd files: use "start" to launch in a new console window.
+        // Use /B and CREATE_NO_WINDOW to keep it hidden while preserving START behavior.
+        let exec = exec_path.to_string_lossy();
+        let workdir = working_dir.to_string_lossy();
+        Command::new("cmd")
+            .args(["/C", "start", "", "/B", "/D", &workdir, &*exec])
+            .stdin(Stdio::null())
+            .stdout(Stdio::null())
+            .stderr(Stdio::null())
+            .creation_flags(CREATE_NO_WINDOW | CREATE_NEW_PROCESS_GROUP)
+            .spawn()
+            .map_err(|err| err.to_string())?;
+    } else {
+        // For exe files: launch directly with detached flags
+        Command::new(exec_path)
+            .current_dir(working_dir)
+            .stdin(Stdio::null())
+            .stdout(Stdio::null())
+            .stderr(Stdio::null())
+            .creation_flags(CREATE_NO_WINDOW | CREATE_NEW_PROCESS_GROUP)
+            .spawn()
+            .map_err(|err| err.to_string())?;
+    }
+
+    Ok(())
+}
+
+#[cfg(not(windows))]
+fn spawn_detached(exec_path: &Path, working_dir: &Path) -> Result<(), String> {
+    Command::new(exec_path)
+        .current_dir(working_dir)
+        .stdin(Stdio::null())
+        .stdout(Stdio::null())
+        .stderr(Stdio::null())
+        .spawn()
+        .map_err(|err| err.to_string())?;
+
+    Ok(())
+}
diff --git a/varManager_backend/src/jobs/update_db.rs b/varManager_backend/src/jobs/update_db.rs
index 3a2cdd8..5c370cd 100644
--- a/varManager_backend/src/jobs/update_db.rs
+++ b/varManager_backend/src/jobs/update_db.rs
@@ -41,8 +41,9 @@ pub async fn run_update_db_job(state: AppState, reporter: JobReporter) -> Result
 }
 
 fn update_db_blocking(state: &AppState, reporter: &JobReporter) -> Result<(), String> {
+    let overall_start = std::time::Instant::now();
     let (varspath, vampath) = config_paths(state)?;
-    reporter.log(format!("UpdateDB start: varspath={}", varspath.display()));
+    reporter.log(format!("UpdateDB started: varspath={}", varspath.display()));
     reporter.progress(1);
 
     let addon_vars = match vampath.as_ref() {
@@ -64,6 +65,7 @@ fn update_db_blocking(state: &AppState, reporter: &JobReporter) -> Result<(), St
     vars_for_install = dedup_strings(vars_for_install);
     save_vars_for_install(&vars_for_install)?;
 
+    reporter.log("Phase 1/5: Tidying VAR files...".to_string());
     tidy_vars(
         &varspath,
         if vampath.is_some() { Some(&addon_vars) } else { None },
@@ -94,6 +96,8 @@ fn update_db_blocking(state: &AppState, reporter: &JobReporter) -> Result<(), St
         return Ok(());
     }
 
+    reporter.log(format!("Phase 2/5: Processing {} VAR files into database...", var_files.len()));
+
     let dependency_regex = Regex::new(
         r#"\x22(([^\r\n\x22\x3A\x2E]{1,60})\x2E([^\r\n\x22\x3A\x2E]{1,80})\x2E(\d+|latest))(\x22?\s*)\x3A"#,
     )
@@ -108,6 +112,9 @@ fn update_db_blocking(state: &AppState, reporter: &JobReporter) -> Result<(), St
     handle.block_on(async move {
         let mut exist_vars: HashSet<String> = HashSet::new();
         let mut tx = pool_for_tx.begin().await.map_err(|err| err.to_string())?;
+        let total_vars = var_files.len();
+        let start_time = std::time::Instant::now();
+
         for (idx, var_file) in var_files.iter().enumerate() {
             let basename = match var_file.file_stem() {
                 Some(stem) => stem.to_string_lossy().to_string(),
@@ -150,13 +157,27 @@ fn update_db_blocking(state: &AppState, reporter: &JobReporter) -> Result<(), St
                 Err(ProcessError::Io(err)) => return Err(err),
             }
 
-            let progress = 10 + ((idx + 1) * 80 / var_files.len()) as u8;
-            if idx % 200 == 0 || idx + 1 == var_files.len() {
+            let progress = 10 + ((idx + 1) * 80 / total_vars) as u8;
+            // Report progress every 50 VARs or at completion, with detailed info
+            if idx % 50 == 0 || idx + 1 == total_vars {
+                let elapsed = start_time.elapsed().as_secs_f64();
+                let speed = if elapsed > 0.0 { (idx + 1) as f64 / elapsed } else { 0.0 };
+                let remaining = if speed > 0.0 { (total_vars - idx - 1) as f64 / speed } else { 0.0 };
+
                 reporter_async.progress(progress.min(90));
+                reporter_async.log(format!(
+                    "Processing VARs: {}/{} ({:.1}%) | Speed: {:.1} VAR/s | ETA: {:.0}s | Current: {}",
+                    idx + 1, total_vars,
+                    (idx + 1) as f64 / total_vars as f64 * 100.0,
+                    speed,
+                    remaining,
+                    basename
+                ));
             }
         }
 
         cleanup_missing_vars(&mut tx, &exist_vars, &varspath_async, &reporter_async).await?;
+        reporter_async.log("Phase 3/5: Committing database changes...".to_string());
         tx.commit().await.map_err(|err| err.to_string())?;
         Ok::<(), String>(())
     })?;
@@ -165,12 +186,15 @@ fn update_db_blocking(state: &AppState, reporter: &JobReporter) -> Result<(), St
 
     if !vars_for_install.is_empty() {
         if let Some(vampath) = vampath.as_ref() {
+            reporter.log("Phase 4/5: Installing pending VARs...".to_string());
             reporter.log(format!(
                 "Install pending vars (varsForInstall): {}",
                 vars_for_install.len()
             ));
             let pending = handle.block_on(vars_dependencies(&pool, vars_for_install))?;
             let total = pending.len();
+            let start_time = std::time::Instant::now();
+
             for (idx, var_name) in pending.iter().enumerate() {
                 match handle.block_on(install_var(&pool, &varspath, vampath, var_name)) {
                     Ok(InstallOutcome::Installed) => {
@@ -181,9 +205,20 @@ fn update_db_blocking(state: &AppState, reporter: &JobReporter) -> Result<(), St
                         reporter.log(format!("install pending failed {} ({})", var_name, err));
                     }
                 }
-                if total > 0 && (idx % 50 == 0 || idx + 1 == total) {
+                if total > 0 && (idx % 20 == 0 || idx + 1 == total) {
                     let progress = 90 + ((idx + 1) * 5 / total) as u8;
+                    let elapsed = start_time.elapsed().as_secs_f64();
+                    let speed = if elapsed > 0.0 { (idx + 1) as f64 / elapsed } else { 0.0 };
+                    let remaining = if speed > 0.0 { (total - idx - 1) as f64 / speed } else { 0.0 };
+
                     reporter.progress(progress.min(95));
+                    reporter.log(format!(
+                        "Installing VARs: {}/{} ({:.1}%) | Speed: {:.1} VAR/s | ETA: {:.0}s",
+                        idx + 1, total,
+                        (idx + 1) as f64 / total as f64 * 100.0,
+                        speed,
+                        remaining
+                    ));
                 }
             }
             let _ = clear_vars_for_install();
@@ -195,6 +230,7 @@ fn update_db_blocking(state: &AppState, reporter: &JobReporter) -> Result<(), St
     reporter.progress(95);
 
     if let Some(vampath) = vampath.as_ref() {
+        reporter.log("Phase 5/5: Refreshing installation status...".to_string());
         handle.block_on(refresh_install_status(&pool, vampath, reporter))?;
         reporter.progress(97);
         match system_ops::rescan_packages(state) {
@@ -207,7 +243,13 @@ fn update_db_blocking(state: &AppState, reporter: &JobReporter) -> Result<(), St
     }
 
     reporter.progress(100);
-    reporter.log("UpdateDB completed".to_string());
+    let total_elapsed = overall_start.elapsed();
+    reporter.log(format!(
+        "UpdateDB completed in {:.1}s ({:.0}m {:.0}s)",
+        total_elapsed.as_secs_f64(),
+        total_elapsed.as_secs() / 60,
+        total_elapsed.as_secs() % 60
+    ));
     Ok(())
 }
 
@@ -305,6 +347,8 @@ fn tidy_vars(
     }
 
     let total = vars.len();
+    let start_time = std::time::Instant::now();
+
     for (idx, varfile) in vars.into_iter().enumerate() {
         if !varfile.exists() {
             continue;
@@ -345,11 +389,20 @@ fn tidy_vars(
             move_file(&varfile, &dest)?;
         }
 
-        if idx % 500 == 0 && total > 0 {
-            reporter.log(format!("TidyVars progress: {}/{}", idx + 1, total));
+        if idx % 200 == 0 && total > 0 {
+            let elapsed = start_time.elapsed().as_secs_f64();
+            let speed = if elapsed > 0.0 { (idx + 1) as f64 / elapsed } else { 0.0 };
+            let remaining = if speed > 0.0 { (total - idx - 1) as f64 / speed } else { 0.0 };
+            reporter.log(format!(
+                "TidyVars: {}/{} ({:.1}%) | Speed: {:.1} VAR/s | ETA: {:.0}s",
+                idx + 1, total,
+                (idx + 1) as f64 / total as f64 * 100.0,
+                speed,
+                remaining
+            ));
         }
     }
-    reporter.log("TidyVars completed".to_string());
+    reporter.log(format!("TidyVars completed: {} files processed", total));
     Ok(())
 }
 
diff --git a/varmanager_flutter/lib/features/bootstrap/bootstrap_controller.dart b/varmanager_flutter/lib/features/bootstrap/bootstrap_controller.dart
index 7e6cee0..93b7a59 100644
--- a/varmanager_flutter/lib/features/bootstrap/bootstrap_controller.dart
+++ b/varmanager_flutter/lib/features/bootstrap/bootstrap_controller.dart
@@ -188,6 +188,10 @@ class BootstrapController extends Notifier<BootstrapState> {
     final proxy = config?.proxy ?? ProxyConfig.empty;
     final proxyMode = config?.proxyMode ?? ProxyMode.system;
 
+    // Normalize vam_exec: extract filename if full path provided
+    if (vamExec.trim().isNotEmpty) {
+      vamExec = p.basename(vamExec.trim());
+    }
     if (vamExec.trim().isEmpty) {
       vamExec = _vamDesktopBat;
     }
diff --git a/varmanager_flutter/lib/features/settings/settings_page.dart b/varmanager_flutter/lib/features/settings/settings_page.dart
index ee6cb3d..3b9ecac 100644
--- a/varmanager_flutter/lib/features/settings/settings_page.dart
+++ b/varmanager_flutter/lib/features/settings/settings_page.dart
@@ -102,22 +102,44 @@ class _SettingsPageState extends ConsumerState<SettingsPage> {
         _downloaderSavePath.text = next;
       }
     }
+    final previous = _config;
+    if (previous == null) return;
+    final listenHost = _listenHost.text.trim();
+    final listenPort = int.tryParse(_listenPort.text.trim()) ?? 57123;
+    final logLevel = _logLevel.text.trim();
+    final jobConcurrency = int.tryParse(_jobConcurrency.text.trim()) ?? 10;
+    final varspath = _varspath.text.trim();
+    final vampath = _vampath.text.trim();
+    final vamExec = _vamExec.text.trim();
+    final downloaderSavePath = _downloaderSavePath.text.trim();
+    final proxyMode = _proxyMode;
+    final proxyHost = _proxyHost.text.trim();
+    final proxyPort = int.tryParse(_proxyPort.text.trim()) ?? 0;
+    final proxyUsername = _proxyUsername.text.trim();
+    final proxyPassword = _proxyPassword.text.trim();
+    final needsRestartHint = previous.listenHost != listenHost ||
+        previous.listenPort != listenPort ||
+        previous.proxyMode != proxyMode ||
+        previous.proxy.host != proxyHost ||
+        previous.proxy.port != proxyPort ||
+        (previous.proxy.username ?? '') != proxyUsername ||
+        (previous.proxy.password ?? '') != proxyPassword;
     final client = ref.read(backendClientProvider);
     final update = <String, dynamic>{
-      'listen_host': _listenHost.text.trim(),
-      'listen_port': int.tryParse(_listenPort.text.trim()) ?? 57123,
-      'log_level': _logLevel.text.trim(),
-      'job_concurrency': int.tryParse(_jobConcurrency.text.trim()) ?? 10,
-      'varspath': _varspath.text.trim(),
-      'vampath': _vampath.text.trim(),
-      'vam_exec': _vamExec.text.trim(),
-      'downloader_save_path': _downloaderSavePath.text.trim(),
-      'proxy_mode': _proxyMode.name,
+      'listen_host': listenHost,
+      'listen_port': listenPort,
+      'log_level': logLevel,
+      'job_concurrency': jobConcurrency,
+      'varspath': varspath,
+      'vampath': vampath,
+      'vam_exec': vamExec,
+      'downloader_save_path': downloaderSavePath,
+      'proxy_mode': proxyMode.name,
       'proxy': {
-        'host': _proxyHost.text.trim(),
-        'port': int.tryParse(_proxyPort.text.trim()) ?? 0,
-        'username': _proxyUsername.text.trim(),
-        'password': _proxyPassword.text.trim(),
+        'host': proxyHost,
+        'port': proxyPort,
+        'username': proxyUsername,
+        'password': proxyPassword,
       },
     };
     final cfg = await client.updateConfig(update);
@@ -126,7 +148,11 @@ class _SettingsPageState extends ConsumerState<SettingsPage> {
       _config = cfg;
     });
     ScaffoldMessenger.of(context).showSnackBar(
-      SnackBar(content: Text(context.l10n.configSavedRestartHint)),
+      SnackBar(
+        content: Text(needsRestartHint
+            ? context.l10n.configSavedRestartHint
+            : context.l10n.configSaved),
+      ),
     );
   }
 
diff --git a/varmanager_flutter/lib/l10n/app_en.arb b/varmanager_flutter/lib/l10n/app_en.arb
index f746138..15eb44b 100644
--- a/varmanager_flutter/lib/l10n/app_en.arb
+++ b/varmanager_flutter/lib/l10n/app_en.arb
@@ -103,6 +103,7 @@
   "chooseAddonPackagesHint": "Recommended: choose AddonPackages",
   "appVersionLabel": "App version",
   "backendVersionLabel": "Backend version",
+  "configSaved": "Config saved",
   "configSavedRestartHint": "Config saved; listen_host/port and proxy apply after restart.",
   "searchVarPackageLabel": "Search var/package",
   "creatorLabel": "Creator",
diff --git a/varmanager_flutter/lib/l10n/app_localizations.dart b/varmanager_flutter/lib/l10n/app_localizations.dart
index 3aa734a..4ae9026 100644
--- a/varmanager_flutter/lib/l10n/app_localizations.dart
+++ b/varmanager_flutter/lib/l10n/app_localizations.dart
@@ -716,6 +716,12 @@ abstract class AppLocalizations {
   /// **'Backend version'**
   String get backendVersionLabel;
 
+  /// No description provided for @configSaved.
+  ///
+  /// In en, this message translates to:
+  /// **'Config saved'**
+  String get configSaved;
+
   /// No description provided for @configSavedRestartHint.
   ///
   /// In en, this message translates to:
diff --git a/varmanager_flutter/lib/l10n/app_localizations_en.dart b/varmanager_flutter/lib/l10n/app_localizations_en.dart
index 2bb7b4f..d1763e7 100644
--- a/varmanager_flutter/lib/l10n/app_localizations_en.dart
+++ b/varmanager_flutter/lib/l10n/app_localizations_en.dart
@@ -332,6 +332,9 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get backendVersionLabel => 'Backend version';
 
+  @override
+  String get configSaved => 'Config saved';
+
   @override
   String get configSavedRestartHint =>
       'Config saved; listen_host/port and proxy apply after restart.';
diff --git a/varmanager_flutter/lib/l10n/app_localizations_zh.dart b/varmanager_flutter/lib/l10n/app_localizations_zh.dart
index 1a85728..453e76f 100644
--- a/varmanager_flutter/lib/l10n/app_localizations_zh.dart
+++ b/varmanager_flutter/lib/l10n/app_localizations_zh.dart
@@ -329,6 +329,9 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get backendVersionLabel => '后端版本';
 
+  @override
+  String get configSaved => '配置已保存';
+
   @override
   String get configSavedRestartHint => '配置已保存；listen_host/port 与代理需重启生效。';
 
diff --git a/varmanager_flutter/lib/l10n/app_zh.arb b/varmanager_flutter/lib/l10n/app_zh.arb
index 51bfc2f..44f2c73 100644
--- a/varmanager_flutter/lib/l10n/app_zh.arb
+++ b/varmanager_flutter/lib/l10n/app_zh.arb
@@ -103,6 +103,7 @@
   "chooseAddonPackagesHint": "推荐: 选择 AddonPackages 目录",
   "appVersionLabel": "应用版本",
   "backendVersionLabel": "后端版本",
+  "configSaved": "配置已保存",
   "configSavedRestartHint": "配置已保存；listen_host/port 与代理需重启生效。",
   "searchVarPackageLabel": "搜索 Var/包",
   "creatorLabel": "作者",