diff --git a/src/ui/Forms/AddWaveform.cs b/src/ui/Forms/AddWaveform.cs
index 0b968f98b..b1f5e791f 100644
--- a/src/ui/Forms/AddWaveform.cs
+++ b/src/ui/Forms/AddWaveform.cs
@@ -118,7 +118,8 @@ namespace Nikse.SubtitleEdit.Forms
                 }
                 parameters = string.Format(fFmpegWaveTranscodeSettings, inputVideoFile, outWaveFile, audioParameter);
             }
-            return new Process { StartInfo = new ProcessStartInfo(exeFilePath, parameters) { WindowStyle = ProcessWindowStyle.Hidden } };
+
+            return new Process { StartInfo = new ProcessStartInfo(exeFilePath, parameters) { WindowStyle = ProcessWindowStyle.Hidden, CreateNoWindow = true } };
         }
 
         private void buttonRipWave_Click(object sender, EventArgs e)
diff --git a/src/ui/Logic/Ocr/Tesseract/TesseractMultiRunner.cs b/src/ui/Logic/Ocr/Tesseract/TesseractMultiRunner.cs
index 9f04ef161..be06304b2 100644
--- a/src/ui/Logic/Ocr/Tesseract/TesseractMultiRunner.cs
+++ b/src/ui/Logic/Ocr/Tesseract/TesseractMultiRunner.cs
@@ -70,7 +70,8 @@ namespace Nikse.SubtitleEdit.Logic.Ocr.Tesseract
                 process.StartInfo = new ProcessStartInfo(dir + "tesseract.exe")
                 {
                     UseShellExecute = true,
-                    Arguments = "\"" + inputFileName + "\" \"" + outputFileName + "\" -l " + languageCode
+                    Arguments = "\"" + inputFileName + "\" \"" + outputFileName + "\" -l " + languageCode,
+                    CreateNoWindow = true,
                 };
 
                 if (!string.IsNullOrEmpty(psmMode))
diff --git a/src/ui/Logic/Ocr/Tesseract/TesseractRunner.cs b/src/ui/Logic/Ocr/Tesseract/TesseractRunner.cs
index 5e53db0ac..63972fb73 100644
--- a/src/ui/Logic/Ocr/Tesseract/TesseractRunner.cs
+++ b/src/ui/Logic/Ocr/Tesseract/TesseractRunner.cs
@@ -38,7 +38,8 @@ namespace Nikse.SubtitleEdit.Logic.Ocr.Tesseract
                 {
                     UseShellExecute = true,
                     WindowStyle = ProcessWindowStyle.Hidden,
-                    Arguments = $@"""{imageFileName}"" ""{tempTextFileName}"" -l {languageCode}"
+                    Arguments = $@"""{imageFileName}"" ""{tempTextFileName}"" -l {languageCode}",
+                    CreateNoWindow = true,
                 };
 
                 if (!string.IsNullOrEmpty(psmMode))