diff --git a/Changelog.md b/Changelog.md
index d5c273e6f..f2033f2d2 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -8,6 +8,7 @@
 - 修复多个代理集合包含同名节点时，代理组中的节点变灰并显示 ambiguous、无法选择的问题
 - 修复手动更新时重复下载后台已下载的安装包、启动时选「稍后」后每次启动都重新下载的问题
 - 修复下载更新时镜像缓慢或卡住不会切换下载地址、点击「取消」无法中止下载的问题
+- 修复关闭「自动检查更新」后，启动时仍弹出已下载更新的安装提示的问题
 - 修复从 Dock 退出、注销或关机时，应用可能长时间卡住无法退出的问题
 
 **🖥️ Windows**
diff --git a/src-tauri/src/core/updater.rs b/src-tauri/src/core/updater.rs
index 77f06fe87..0a0324a88 100644
--- a/src-tauri/src/core/updater.rs
+++ b/src-tauri/src/core/updater.rs
@@ -15,6 +15,7 @@ use tokio_util::sync::CancellationToken;
 pub struct SilentUpdater {
     update_ready: AtomicBool,
     manual_cancel: Mutex<Option<CancellationToken>>,
+    background_cancel: Mutex<Option<CancellationToken>>,
 }
 
 singleton!(SilentUpdater, SILENT_UPDATER);
@@ -24,6 +25,7 @@ impl SilentUpdater {
         Self {
             update_ready: AtomicBool::new(false),
             manual_cancel: Mutex::new(None),
+            background_cancel: Mutex::new(None),
         }
     }
 
@@ -328,6 +330,11 @@ impl SilentUpdater {
 
     /// Installs a newer cached update before normal startup, if the user confirms.
     pub async fn try_install_on_startup(&self, app_handle: &tauri::AppHandle) -> bool {
+        if !Config::verge().await.latest_arc().auto_check_update.unwrap_or(true) {
+            Self::delete_cache();
+            return false;
+        }
+
         let current_version = env!("CARGO_PKG_VERSION");
 
         let meta = match Self::read_cache_meta() {
@@ -466,6 +473,16 @@ impl SilentUpdater {
             cancel.cancel();
         }
     }
+
+    /// Drops the downloaded update and aborts a background download in flight.
+    pub fn discard_pending(&self) {
+        let cancel = self.background_cancel.lock().take();
+        if let Some(cancel) = cancel {
+            cancel.cancel();
+        }
+        self.update_ready.store(false, Ordering::Release);
+        Self::delete_cache();
+    }
 }
 
 impl SilentUpdater {
@@ -575,6 +592,9 @@ impl SilentUpdater {
 
 impl SilentUpdater {
     async fn check_and_download(&self, app_handle: &tauri::AppHandle) -> Result<()> {
+        // Registered before reading the switch, so `discard_pending` either cancels it or ran first.
+        let cancel = CancellationToken::new();
+        *self.background_cancel.lock() = Some(cancel.clone());
         let auto_check = Config::verge().await.latest_arc().auto_check_update.unwrap_or(true);
         if !auto_check {
             logging!(debug, Type::System, "Silent update skipped: auto_check_update is false");
@@ -623,11 +643,31 @@ impl SilentUpdater {
             logging!(info, Type::System, "Silent updater: v{version} already cached");
         } else {
             logging!(info, Type::System, "Silent updater: downloading v{version}...");
-            let bytes = download(&update, |_| {}).await?;
+            let downloaded = tokio::select! {
+                bytes = download(&update, |_| {}) => Some(bytes),
+                () = cancel.cancelled() => None,
+            };
+            let Some(bytes) = downloaded else {
+                logging!(info, Type::System, "Silent updater: download cancelled");
+                return Ok(());
+            };
+            let bytes = bytes?;
             logging!(info, Type::System, "Silent updater: download complete");
             Self::write_cache(&bytes, &version)?;
         }
 
+        // Serialized with `discard_pending` in the verge patch, which holds the same lock.
+        let _config_write = Config::lock_config_write().await;
+        if cancel.is_cancelled() || !Config::verge().await.latest_arc().auto_check_update.unwrap_or(true) {
+            logging!(
+                info,
+                Type::System,
+                "Silent updater: auto check was disabled, discarding v{version}"
+            );
+            Self::delete_cache();
+            return Ok(());
+        }
+
         self.update_ready.store(true, Ordering::Release);
 
         logging!(
diff --git a/src-tauri/src/feat/config.rs b/src-tauri/src/feat/config.rs
index 7bcb17a80..797911037 100644
--- a/src-tauri/src/feat/config.rs
+++ b/src-tauri/src/feat/config.rs
@@ -1,6 +1,6 @@
 use crate::{
     config::{Config, IVerge},
-    core::{CoreManager, autostart, handle, hotkey, logger, proxy_control, tray},
+    core::{CoreManager, SilentUpdater, autostart, handle, hotkey, logger, proxy_control, tray},
     module::{auto_backup::AutoBackupManager, lightweight},
 };
 use anyhow::Result;
@@ -310,6 +310,9 @@ pub(super) async fn apply_verge_patch_locked(
     // A failed patch rolls back to what the user already had; it never invents a value for them.
     process_terminated_flags(update_flags, patch).await?;
     transaction.commit();
+    if patch.auto_check_update == Some(false) {
+        SilentUpdater::global().discard_pending();
+    }
     announce_verge_change();
 
     logging_error!(Type::Backup, AutoBackupManager::global().refresh_settings().await);