diff --git a/apps/codex-plus-manager/src-tauri/src/commands.rs b/apps/codex-plus-manager/src-tauri/src/commands.rs
index 1f17a6456..251378c9d 100644
--- a/apps/codex-plus-manager/src-tauri/src/commands.rs
+++ b/apps/codex-plus-manager/src-tauri/src/commands.rs
@@ -1450,9 +1450,11 @@ pub fn find_desktop_codex_cli() -> CommandResult<Value> {
     ) else {
         return failed("未找到 Codex Desktop 应用。", json!({ "path": null }));
     };
-    let Some(path) = codex_plus_core::app_paths::find_bundled_codex_cli(&app_dir) else {
+    let bundled = codex_plus_core::app_paths::find_bundled_codex_cli(&app_dir);
+    let standalone = codex_plus_core::app_paths::find_standalone_codex_cli();
+    let Some(path) = [bundled, standalone].into_iter().flatten().find(|candidate| codex_cli_can_start(candidate)) else {
         return failed(
-            "已找到 Codex Desktop，但包内没有可用的 Codex CLI。",
+            "已找到 Codex Desktop，但没有可用的 Codex CLI；请安装或指定用户目录中的 Codex CLI。",
             json!({ "path": null }),
         );
     };
@@ -1462,6 +1464,27 @@ pub fn find_desktop_codex_cli() -> CommandResult<Value> {
     )
 }
 
+fn codex_cli_can_start(path: &std::path::Path) -> bool {
+    use std::process::{Command, Stdio};
+    use std::time::{Duration, Instant};
+    let mut command = Command::new(path);
+    command.arg("--version").stdin(Stdio::null()).stdout(Stdio::null()).stderr(Stdio::null());
+    #[cfg(windows)]
+    {
+        use std::os::windows::process::CommandExt;
+        command.creation_flags(codex_plus_core::windows_create_no_window());
+    }
+    let Ok(mut child) = command.spawn() else { return false; };
+    let deadline = Instant::now() + Duration::from_secs(5);
+    loop {
+        match child.try_wait() {
+            Ok(Some(status)) => return status.success(),
+            Ok(None) if Instant::now() < deadline => std::thread::sleep(Duration::from_millis(25)),
+            _ => { let _ = child.kill(); let _ = child.wait(); return false; }
+        }
+    }
+}
+
 fn spawn_weixin_connect(
     settings: BackendSettings,
 ) -> anyhow::Result<codex_plus_core::connect::WeixinConnectStatus> {
diff --git a/crates/codex-plus-core/src/app_paths.rs b/crates/codex-plus-core/src/app_paths.rs
index 4d9726e1b..a1d5a69d8 100644
--- a/crates/codex-plus-core/src/app_paths.rs
+++ b/crates/codex-plus-core/src/app_paths.rs
@@ -410,6 +410,62 @@ pub fn find_standalone_codex_app_dir() -> Option<PathBuf> {
     None
 }
 
+/// Finds the CLI shipped by the standalone Codex installer.
+pub fn find_standalone_codex_cli() -> Option<PathBuf> {
+    let local_appdata = std::env::var_os("LOCALAPPDATA")?;
+    find_standalone_codex_cli_in(&PathBuf::from(local_appdata).join("OpenAI").join("Codex").join("bin"))
+}
+
+fn find_standalone_codex_cli_in(bin_dir: &Path) -> Option<PathBuf> {
+    let mut candidates = Vec::new();
+    if let Some(path) = standalone_cli_in_dir(bin_dir) { candidates.push(path); }
+    if let Ok(entries) = std::fs::read_dir(bin_dir) {
+        for entry in entries.flatten() {
+            if entry.path().is_dir() {
+                if let Some(path) = standalone_cli_in_dir(&entry.path()) { candidates.push(path); }
+            }
+        }
+    }
+    candidates.sort_by_key(|path| std::fs::metadata(path).and_then(|metadata| metadata.modified()).ok());
+    candidates.pop()
+}
+
+fn standalone_cli_in_dir(dir: &Path) -> Option<PathBuf> {
+    ["codex.exe", "codex", "Codex.exe", "Codex"].iter().map(|name| dir.join(name)).find(|path| path.is_file())
+}
+
+#[cfg(test)]
+mod standalone_cli_tests {
+    use super::find_standalone_codex_cli_in;
+
+    #[test]
+    fn standalone_cli_finds_latest_versioned_binary() {
+        let temp = tempfile::tempdir().unwrap();
+        let old = temp.path().join("old");
+        let new = temp.path().join("new");
+        std::fs::create_dir_all(&old).unwrap();
+        std::fs::create_dir_all(&new).unwrap();
+        std::fs::write(old.join("codex.exe"), "old").unwrap();
+        std::fs::write(new.join("codex.exe"), "new").unwrap();
+        std::fs::File::options().write(true).open(old.join("codex.exe")).unwrap().set_times(std::fs::FileTimes::new().set_modified(std::time::SystemTime::UNIX_EPOCH + std::time::Duration::from_secs(1_000_000))).unwrap();
+        assert_eq!(find_standalone_codex_cli_in(temp.path()), Some(new.join("codex.exe")));
+    }
+
+    #[test]
+    fn standalone_cli_returns_none_without_binary() {
+        let temp = tempfile::tempdir().unwrap();
+        assert_eq!(find_standalone_codex_cli_in(temp.path()), None);
+    }
+
+    #[test]
+    fn standalone_cli_finds_unversioned_binary() {
+        let temp = tempfile::tempdir().unwrap();
+        let binary = temp.path().join("codex.exe");
+        std::fs::write(&binary, "cli").unwrap();
+        assert_eq!(find_standalone_codex_cli_in(temp.path()), Some(binary));
+    }
+}
+
 pub fn resolve_codex_app_dir_with_saved(
     app_dir: Option<&Path>,
     saved_app_path: Option<&str>,