diff --git a/cpp/shareddllproxy/update.cpp b/cpp/shareddllproxy/update.cpp
index 9f380d31..eabec2f9 100644
--- a/cpp/shareddllproxy/update.cpp
+++ b/cpp/shareddllproxy/update.cpp
@@ -26,18 +26,33 @@ int updatewmain(int argc, wchar_t *argv[])
     int needreload = std::stoi(argv[1]);
     try
     {
+        std::filesystem::remove_all(L".\\files_old");
+        std::filesystem::rename(L".\\files", L".\\files_old");
         std::filesystem::copy(argv[2], L".\\", std::filesystem::copy_options::recursive | std::filesystem::copy_options::overwrite_existing);
+        try
+        {
+            std::filesystem::remove_all(L".\\files_old");
+        }
+        catch (...)
+        {
+        }
     }
     catch (std::exception &e)
     {
+        try
+        {
+            std::filesystem::rename(L".\\files_old", L".\\files");
+        }
+        catch (...)
+        {
+        }
         MessageBoxA(GetForegroundWindow(), (std::string("Update failed!\r\n") + e.what()).c_str(), "Error", 0);
         ShellExecute(0, L"open", (std::wstring(argv[3]) + L"/Github/LunaTranslator/releases").c_str(), NULL, NULL, SW_SHOWNORMAL);
         return 0;
     }
     try
     {
-        wcscat(path, L"\\cache\\update");
-        std::filesystem::remove_all(path);
+        std::filesystem::remove_all(argv[2]);
     }
     catch (std::exception &e)
     {
diff --git a/cpp/version.cmake b/cpp/version.cmake
index 6c685ee0..06e0c658 100644
--- a/cpp/version.cmake
+++ b/cpp/version.cmake
@@ -1,7 +1,7 @@
 
 set(VERSION_MAJOR 6)
 set(VERSION_MINOR 5)
-set(VERSION_PATCH 2)
+set(VERSION_PATCH 3)
 set(VERSION_REVISION 0)
 set(LUNA_VERSION "{${VERSION_MAJOR},${VERSION_MINOR},${VERSION_PATCH},${VERSION_REVISION}}")
 add_library(VERSION_DEF INTERFACE)
diff --git a/cpp/winsharedutils/webview2_extra.cpp b/cpp/winsharedutils/webview2_extra.cpp
index b5c0261f..b4e572e4 100644
--- a/cpp/winsharedutils/webview2_extra.cpp
+++ b/cpp/winsharedutils/webview2_extra.cpp
@@ -1,4 +1,4 @@
-#ifndef WINXP
+#ifndef WINXP
 
 #include <wrl.h>
 #include <wil/com.h>