diff --git a/plugins/PluginBrowser/PluginBrowser.py b/plugins/PluginBrowser/PluginBrowser.py
index 49405c4272..ee1b8906da 100644
--- a/plugins/PluginBrowser/PluginBrowser.py
+++ b/plugins/PluginBrowser/PluginBrowser.py
@@ -100,9 +100,16 @@ class PluginBrowser(QObject, Extension):
             if new_progress == 100.0:
                 self.setIsDownloading(False)
                 self._download_plugin_reply.downloadProgress.disconnect(self._onDownloadPluginProgress)
-                self._temp_plugin_file = tempfile.NamedTemporaryFile(suffix = ".curaplugin")
-                self._temp_plugin_file.write(self._download_plugin_reply.readAll())
+
+                # must not delete the temporary file on Windows
+                self._temp_plugin_file = tempfile.NamedTemporaryFile(mode = "w+b", suffix = ".curaplugin", delete = False)
                 location = self._temp_plugin_file.name
+
+                # write first and close, otherwise on Windows, it cannot read the file
+                self._temp_plugin_file.write(self._download_plugin_reply.readAll())
+                self._temp_plugin_file.close()
+
+                # open as read
                 if not location.startswith("/"):
                     location = "/" + location # Ensure that it starts with a /, as otherwise it doesn't work on windows.
                 result = PluginRegistry.getInstance().installPlugin("file://" + location)