diff --git a/MangaJaNaiConverterGui/ViewModels/MainWindowViewModel.cs b/MangaJaNaiConverterGui/ViewModels/MainWindowViewModel.cs
index cd7216c..e36887d 100644
--- a/MangaJaNaiConverterGui/ViewModels/MainWindowViewModel.cs
+++ b/MangaJaNaiConverterGui/ViewModels/MainWindowViewModel.cs
@@ -1265,6 +1265,10 @@ await Task.Run(async () =>
                     BackendSetupMainStatus = "Downloading Python...";
                     var download = PythonService.PYTHON_DOWNLOADS["win32"];
                     var targetPath = Path.Join(_pythonService.PythonDirectory, download.Filename);
+                    if (Directory.Exists(_pythonService.PythonDirectory))
+                    {
+                        Directory.Delete(_pythonService.PythonDirectory, true);
+                    }
                     Directory.CreateDirectory(_pythonService.PythonDirectory);
                     await Downloader.DownloadFileAsync(download.Url, targetPath, (progress) =>
                     {
diff --git a/MangaJaNaiConverterGui/backend/src/run_upscale.py b/MangaJaNaiConverterGui/backend/src/run_upscale.py
index a6f5933..7241a2f 100644
--- a/MangaJaNaiConverterGui/backend/src/run_upscale.py
+++ b/MangaJaNaiConverterGui/backend/src/run_upscale.py
@@ -558,7 +558,7 @@ def save_image(
     args = {"Q": int(lossy_compression_quality)}
     if image_format in {"webp"}:
         args["lossless"] = use_lossless_compression
-    pyvips.Image.new_from_array(image).write_to_file(f".{image_format}", **args)
+    pyvips.Image.new_from_array(image).write_to_file(output_file_path, **args)
 
 
 def preprocess_worker_archive(