diff --git a/DrissionPage/_functions/browser.py b/DrissionPage/_functions/browser.py
index 2fbc5c7..5075945 100644
--- a/DrissionPage/_functions/browser.py
+++ b/DrissionPage/_functions/browser.py
@@ -316,14 +316,20 @@ def get_chrome_path(ini_path):
         return None
 
     # -----------从注册表中获取--------------
-    import winreg
+    from winreg import OpenKey, EnumValue, CloseKey, HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE, KEY_READ
     try:
-        key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE,
-                             r'SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\chrome.exe',
-                             reserved=0, access=winreg.KEY_READ)
-        k = winreg.EnumValue(key, 0)
-        winreg.CloseKey(key)
-
+        key = OpenKey(HKEY_CURRENT_USER,
+                      r'SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\chrome.exe',
+                      reserved=0, access=KEY_READ)
+        k = EnumValue(key, 0)
+        CloseKey(key)
+        if k[1]:
+            return k[1]
+        key = OpenKey(HKEY_LOCAL_MACHINE,
+                      r'SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\chrome.exe',
+                      reserved=0, access=KEY_READ)
+        k = EnumValue(key, 0)
+        CloseKey(key)
         return k[1]
 
     except FileNotFoundError:
diff --git a/DrissionPage/_functions/tools.py b/DrissionPage/_functions/tools.py
index 49b0bca..c2ec84e 100644
--- a/DrissionPage/_functions/tools.py
+++ b/DrissionPage/_functions/tools.py
@@ -204,7 +204,12 @@ def stop_process_on_port(port, pid=None):
         for conn in connections:
             if conn.laddr.port == int(port):
                 try:
-                    proc.terminate()
+                    # proc.terminate()
+                    parent = proc.parent()
+                    if parent is None:
+                        proc.kill()
+                    elif parent.name() == 'explorer.exe':
+                        proc.terminate()
                 except (NoSuchProcess, AccessDenied, ZombieProcess):
                     pass
                 except Exception as e:
diff --git a/DrissionPage/_units/clicker.py b/DrissionPage/_units/clicker.py
index ce1a394..d8a9b1e 100644
--- a/DrissionPage/_units/clicker.py
+++ b/DrissionPage/_units/clicker.py
@@ -140,13 +140,14 @@ class Clicker(object):
         """
         self.at(count=times)
 
-    def to_download(self, save_path=None, rename=None, suffix=None, new_tab=False, by_js=False):
+    def to_download(self, save_path=None, rename=None, suffix=None, new_tab=False, by_js=False, timeout=None):
         """点击触发下载
         :param save_path: 保存路径，为None保存在原来设置的，如未设置保存到当前路径
         :param rename: 重命名文件名
         :param suffix: 指定文件后缀
         :param new_tab: 该下载是否在新tab中触发
         :param by_js: 是否用js方式点击，逻辑与click()一致
+        :param timeout: 等待下载触发的超时时间，为None则使用页面对象设置
         :return: DownloadMission对象
         """
         if save_path:
@@ -160,7 +161,7 @@ class Clicker(object):
         tab = self._ele.page._page if new_tab else self._ele.page
 
         self.left(by_js=by_js)
-        return tab.wait.download_begin()
+        return tab.wait.download_begin(timeout=timeout)
 
     def to_upload(self, file_paths, by_js=False):
         """触发上传文件选择框并自动填入指定路径
diff --git a/DrissionPage/_units/clicker.pyi b/DrissionPage/_units/clicker.pyi
index ac80568..e6ca30f 100644
--- a/DrissionPage/_units/clicker.pyi
+++ b/DrissionPage/_units/clicker.pyi
@@ -38,7 +38,8 @@ class Clicker(object):
                     rename: str = None,
                     suffix: str = None,
                     new_tab: bool = False,
-                    by_js: bool = False) -> DownloadMission: ...
+                    by_js: bool = False,
+                    timeout:float=None) -> DownloadMission: ...
 
     def to_upload(self, file_paths: Union[str, Path, list, tuple], by_js: bool = False) -> None: ...