diff --git a/FModel/Forms/About.cs b/FModel/Forms/About.cs
index 99bcbcd5..31392df4 100644
--- a/FModel/Forms/About.cs
+++ b/FModel/Forms/About.cs
@@ -24,7 +24,7 @@ namespace FModel.Forms
 
         private void linkLabel3_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
         {
-            System.Diagnostics.Process.Start("https://github.com/iAmAsval/FModel#how-to-use");
+            System.Diagnostics.Process.Start("https://github.com/iAmAsval/FModel/blob/master/README.md#how-to-use");
         }
     }
 }
diff --git a/FModel/Forms/Settings.cs b/FModel/Forms/Settings.cs
index fd297a4a..5daedfdd 100644
--- a/FModel/Forms/Settings.cs
+++ b/FModel/Forms/Settings.cs
@@ -14,6 +14,9 @@ namespace FModel.Forms
 
         public Settings()
         {
+            // Check if watermark exists
+            Utilities.CheckWatermark();
+
             InitializeComponent();
 
             textBox2.Text = Properties.Settings.Default.PAKsPath;
@@ -36,6 +39,9 @@ namespace FModel.Forms
             checkBoxSaveAsMergeImages.Checked   = Properties.Settings.Default.mergerImagesSaveAs;
             imgsPerRow.Value                    = Properties.Settings.Default.mergerImagesRow;
 
+            // Check if watermark exists
+            Utilities.CheckWatermark();
+
             //WATERMARK
             button1.Enabled     = Properties.Settings.Default.isWatermark;
             checkBox7.Checked   = Properties.Settings.Default.isWatermark;
diff --git a/FModel/Forms/UpdateModeSettings.cs b/FModel/Forms/UpdateModeSettings.cs
index d7a17469..0f46505c 100644
--- a/FModel/Forms/UpdateModeSettings.cs
+++ b/FModel/Forms/UpdateModeSettings.cs
@@ -10,6 +10,9 @@ namespace FModel.Forms
     {
         public UpdateModeSettings()
         {
+            // Check if watermark exists
+            Utilities.CheckWatermark();
+
             InitializeComponent();
 
             //ICON CREATION
diff --git a/FModel/MainWindow.cs b/FModel/MainWindow.cs
index e0f12218..ca647625 100644
--- a/FModel/MainWindow.cs
+++ b/FModel/MainWindow.cs
@@ -36,6 +36,9 @@ namespace FModel
 
         public MainWindow()
         {
+            // Check if watermark exists
+            Utilities.CheckWatermark();
+
             InitializeComponent();
             App.MainFormToUse = this;
 
@@ -551,6 +554,9 @@ namespace FModel
         }
         private void UpdateModeExtractSave()
         {
+            // Check if watermark exists
+            Utilities.CheckWatermark();
+
             CreatePakList(null, false, true, true);
 
             Invoke(new Action(() =>
@@ -1331,6 +1337,9 @@ namespace FModel
 
         private void ExtractProcess()
         {
+            // Check if watermark exists
+            Utilities.CheckWatermark();
+
             scintilla1.Text = "";
             pictureBox1.Image = null;
             ExtractButton.Enabled = false;
diff --git a/FModel/Methods/Utilities/Utilities.cs b/FModel/Methods/Utilities/Utilities.cs
index 63829e18..c194a256 100644
--- a/FModel/Methods/Utilities/Utilities.cs
+++ b/FModel/Methods/Utilities/Utilities.cs
@@ -186,5 +186,22 @@ namespace FModel
                 }
             }
         }
+
+        public static void CheckWatermark()
+        {
+            if (!string.IsNullOrEmpty(Properties.Settings.Default.wFilename) &&
+                !File.Exists(Properties.Settings.Default.wFilename))
+            {
+                Properties.Settings.Default.wFilename = string.Empty;
+                Properties.Settings.Default.isWatermark = false;
+            }
+
+            if (!string.IsNullOrEmpty(Properties.Settings.Default.UMFilename) &&
+                !File.Exists(Properties.Settings.Default.UMFilename))
+            {
+                Properties.Settings.Default.UMFilename = string.Empty;
+                Properties.Settings.Default.UMWatermark = false;
+            }
+        }
     }
 }