diff --git a/src/windowsPlatform.cpp b/src/windowsPlatform.cpp
index 03df0e1..018b7a3 100644
--- a/src/windowsPlatform.cpp
+++ b/src/windowsPlatform.cpp
@@ -437,45 +437,10 @@ namespace GakumasLocal::WinHooks {
             return CallWindowProc(g_pfnOldWndProc, hWnd, uMsg, wParam, lParam);
         }
 
-        HWND FindUnityWindow() {
-            const auto currentProcessId = GetCurrentProcessId();
-            HWND candidate = nullptr;
-
-            // 优先按进程 ID 匹配本进程的 Unity 窗口，避免 3.0.0 修改窗口标题后找不到
-            while ((candidate = FindWindowExW(nullptr, candidate, L"UnityWndClass", nullptr)) != nullptr) {
-                DWORD windowProcessId = 0;
-                GetWindowThreadProcessId(candidate, &windowProcessId);
-                if (windowProcessId == currentProcessId) {
-                    return candidate;
-                }
-            }
-
-            return FindWindowW(L"UnityWndClass", L"gakumas");
-        }
-
         void InstallWndProcHook() {
-            HWND hWnd = nullptr;
-
-            // 等待游戏窗口出现（最多约 5 秒），避免窗口创建前安装失败
-            for (int i = 0; i < 50 && !hWnd; ++i) {
-                hWnd = FindUnityWindow();
-                if (!hWnd) {
-                    std::this_thread::sleep_for(std::chrono::milliseconds(100));
-                }
-            }
-
-            if (!hWnd) {
-                GakumasLocal::Log::Error("InstallWndProcHook: Unity window not found.");
-                return;
-            }
-
+            auto hWnd = FindWindowW(L"UnityWndClass", L"gakumas");
             g_pfnOldWndProc = (WNDPROC)GetWindowLongPtr(hWnd, GWLP_WNDPROC);
-            if (!g_pfnOldWndProc) {
-                GakumasLocal::Log::Error("InstallWndProcHook: GetWindowLongPtr failed.");
-                return;
-            }
-            SetWindowLongPtr(hWnd, GWLP_WNDPROC, (LONG_PTR)WndProcCallback);
-
+            SetWindowLongPtr(FindWindowW(L"UnityWndClass", L"gakumas"), GWLP_WNDPROC, (LONG_PTR)WndProcCallback);
             // 添加可调整大小的边框和最大化按钮
             LONG style = GetWindowLong(hWnd, GWL_STYLE);
             style |= WS_THICKFRAME | WS_MAXIMIZEBOX;