diff --git a/src/slic3r/GUI/ConfigWizard.cpp b/src/slic3r/GUI/ConfigWizard.cpp
index 224c0e30b..2d2fbd8d7 100644
--- a/src/slic3r/GUI/ConfigWizard.cpp
+++ b/src/slic3r/GUI/ConfigWizard.cpp
@@ -1447,9 +1447,12 @@ bool PageDownloader::on_finish_downloader() const
 
 bool DownloaderUtils::Worker::perform_register()
 {
-    //boost::filesystem::path chosen_dest/*(path_text_ctrl->GetValue());*/(boost::nowide::narrow(path_text_ctrl->GetValue()));
-    boost::filesystem::path chosen_dest (GUI::format(path_name()));
+    boost::filesystem::path aux_dest (GUI::into_u8(path_name()));
     boost::system::error_code ec;
+    boost::filesystem::path chosen_dest = boost::filesystem::absolute(aux_dest, ec);
+    if(ec)
+        chosen_dest = aux_dest;
+    ec.clear();
     if (chosen_dest.empty() || !boost::filesystem::is_directory(chosen_dest, ec) || ec) {
         std::string err_msg = GUI::format("%1%\n\n%2%",_L("Chosen directory for downloads does not Exists.") ,chosen_dest.string());
         BOOST_LOG_TRIVIAL(error) << err_msg;
diff --git a/src/slic3r/GUI/DownloaderFileGet.cpp b/src/slic3r/GUI/DownloaderFileGet.cpp
index 9eda21293..b30c1a237 100644
--- a/src/slic3r/GUI/DownloaderFileGet.cpp
+++ b/src/slic3r/GUI/DownloaderFileGet.cpp
@@ -9,6 +9,8 @@
 #include <iostream>
 
 #include "format.hpp"
+#include "GUI.hpp"
+#include "I18N.hpp"
 
 namespace Slic3r {
 namespace GUI {
@@ -168,7 +170,14 @@ void FileGet::priv::get_perform()
 	else 
 		file = fopen(temp_path_wstring.c_str(), "ab");
 
-	assert(file != NULL);
+	//assert(file != NULL);
+	if (file == NULL) {
+		wxCommandEvent* evt = new wxCommandEvent(EVT_DWNLDR_FILE_ERROR);
+		evt->SetString(GUI::format_wxstr(_L("Can't create file at %1%."), temp_path_wstring));
+		evt->SetInt(m_id);
+		m_evt_handler->QueueEvent(evt);
+		return;
+	}
 
 	std:: string range_string = std::to_string(m_written) + "-";
 
@@ -244,7 +253,7 @@ void FileGet::priv::get_perform()
 			if (file != NULL)
 				fclose(file);
 			wxCommandEvent* evt = new wxCommandEvent(EVT_DWNLDR_FILE_ERROR);
-			evt->SetString(error);
+			evt->SetString(GUI::from_u8(error));
 			evt->SetInt(m_id);
 			m_evt_handler->QueueEvent(evt);
 		})