diff --git a/cmd/WiiUDownloader/mainwindow.go b/cmd/WiiUDownloader/mainwindow.go
index 30a7aad..08c5ace 100644
--- a/cmd/WiiUDownloader/mainwindow.go
+++ b/cmd/WiiUDownloader/mainwindow.go
@@ -489,9 +489,11 @@ func (mw *MainWindow) onCategoryToggled(button *gtk.ToggleButton) {
 func (mw *MainWindow) onDecryptContentsMenuItemClicked(selectedPath string) error {
 	err := wiiudownloader.DecryptContents(selectedPath, &mw.progressWindow, false)
 
-	if mw.progressWindow.Window.IsVisible() {
-		mw.progressWindow.Window.Close()
-	}
+	glib.IdleAdd(func() {
+		if mw.progressWindow.Window.IsVisible() {
+			mw.progressWindow.Window.Close()
+		}
+	})
 	return err
 }
 
@@ -778,9 +780,11 @@ queueProcessingLoop:
 	}
 
 	mw.titleQueue = []wiiudownloader.TitleEntry{} // Clear the queue
-	if mw.progressWindow.Window.IsVisible() {
-		mw.progressWindow.Window.Close()
-	}
+	glib.IdleAdd(func() {
+		if mw.progressWindow.Window.IsVisible() {
+			mw.progressWindow.Window.Close()
+		}
+	})
 	mw.updateTitlesInQueue()
 	mw.onSelectionChanged()
 
diff --git a/decryption.go b/decryption.go
index 4a56a6c..4497117 100644
--- a/decryption.go
+++ b/decryption.go
@@ -18,6 +18,7 @@ import (
 	"time"
 	"unsafe"
 
+	"github.com/gotk3/gotk3/glib"
 	"github.com/gotk3/gotk3/gtk"
 )
 
@@ -35,11 +36,15 @@ func DecryptContents(path string, progress *ProgressWindow, deleteEncryptedConte
 
 	go runDecryption(path, errorChan, deleteEncryptedContents)
 
-	progress.bar.SetText("Decrypting...")
+	glib.IdleAdd(func() {
+		progress.bar.SetText("Decrypting...")
+	})
 
 	for progressInt := range progressChan {
 		if progressInt > 0 {
-			progress.bar.SetFraction(float64(progressInt) / 100)
+			glib.IdleAdd(func() {
+				progress.bar.SetFraction(float64(progressInt) / 100)
+			})
 			for gtk.EventsPending() {
 				gtk.MainIteration()
 			}
diff --git a/downloader.go b/downloader.go
index 2f9b2b9..d83079f 100644
--- a/downloader.go
+++ b/downloader.go
@@ -98,8 +98,10 @@ func downloadFile(progressWindow *ProgressWindow, client *grab.Client, downloadU
 		req.BufferSize = bufferSize
 
 		resp := client.Do(req)
-		progressWindow.bar.SetFraction(resp.Progress())
-		progressWindow.bar.SetText(fmt.Sprintf("Downloading %s (%s/%s) (%s/s)", filePath, humanize.Bytes(uint64(resp.BytesComplete())), humanize.Bytes(uint64(resp.Size())), humanize.Bytes(uint64(resp.BytesPerSecond()))))
+		glib.IdleAdd(func() {
+			progressWindow.bar.SetFraction(resp.Progress())
+			progressWindow.bar.SetText(fmt.Sprintf("Downloading %s (%s/%s) (%s/s)", filePath, humanize.Bytes(uint64(resp.BytesComplete())), humanize.Bytes(uint64(resp.Size())), humanize.Bytes(uint64(resp.BytesPerSecond()))))
+		})
 		for gtk.EventsPending() {
 			gtk.MainIteration()
 		}
@@ -148,7 +150,9 @@ func DownloadTitle(titleID string, outputDirectory string, doDecryption bool, pr
 
 	titleEntry := getTitleEntryFromTid(titleID)
 
-	progressWindow.gameLabel.SetText(titleEntry.Name)
+	glib.IdleAdd(func() {
+		progressWindow.gameLabel.SetText(titleEntry.Name)
+	})
 	outputDir := strings.TrimRight(outputDirectory, "/\\")
 	baseURL := fmt.Sprintf("http://ccs.cdn.c.shop.nintendowifi.net/ccs/download/%s", titleID)
 	titleIDBytes, err := hex.DecodeString(titleID)