diff --git a/RHLauncher.Helper/ServiceFileHandler.cs b/RHLauncher.Helper/ServiceFileHandler.cs
index ca78a3b..8184919 100644
--- a/RHLauncher.Helper/ServiceFileHandler.cs
+++ b/RHLauncher.Helper/ServiceFileHandler.cs
@@ -19,15 +19,31 @@ namespace RHLauncher.RHLauncher.Helper
             string md5 = CalculateMD5(service);
 
             string serviceDatPath = Path.Combine(_installDirectory, "Service.dat");
-            string[] lines = File.ReadAllLines(serviceDatPath);
 
-            string currentMd5 = lines[0];
-            string currentService = string.Join(Environment.NewLine, lines, 1, lines.Length - 1);
-
-            if (currentMd5 != md5)
+            try
             {
-                lines[0] = md5;
-                File.WriteAllLines(serviceDatPath, lines);
+                if (File.Exists(serviceDatPath))
+                {
+                    string[] lines = File.ReadAllLines(serviceDatPath);
+
+                    string currentMd5 = lines[0];
+                    string currentService = string.Join(Environment.NewLine, lines, 1, lines.Length - 1);
+
+                    if (currentMd5 != md5)
+                    {
+                        lines[0] = md5;
+                        File.WriteAllLines(serviceDatPath, lines);
+                    }
+                }
+                else
+                {
+                    MsgBoxForm.Show("Service.dat file does not exist. Please check if the Install Directory is correct.", LocalizedStrings.Error);
+                    return;
+                }
+            }
+            catch (Exception ex)
+            {
+                MsgBoxForm.Show("An error occurred while updating service: " + ex.Message, LocalizedStrings.Error);
             }
         }
 
diff --git a/RHLauncher.LauncherForm/LauncherForm.cs b/RHLauncher.LauncherForm/LauncherForm.cs
index aafb460..f451e88 100644
--- a/RHLauncher.LauncherForm/LauncherForm.cs
+++ b/RHLauncher.LauncherForm/LauncherForm.cs
@@ -145,6 +145,11 @@ namespace RHLauncher
                         LaunchButton.Click -= LaunchGameButton_Click;
                         LaunchButton.Click += LaunchGameButton_Click;
                         break;
+                    case UpdateState.Error:
+                        LaunchButton.Text = LocalizedStrings.Launch;
+                        LaunchButton.Click -= LaunchGameButton_Click;
+                        LaunchButton.Click += LaunchGameButton_Click;
+                        break;
                 }
             }
             catch (Exception ex)
diff --git a/RHLauncher.RegForm/RegForm.cs b/RHLauncher.RegForm/RegForm.cs
index 9ff6459..7f25254 100644
--- a/RHLauncher.RegForm/RegForm.cs
+++ b/RHLauncher.RegForm/RegForm.cs
@@ -37,7 +37,7 @@ namespace RHLauncher
         private async Task<string> SendEmailRequestAsync()
         {
             using HttpClient client = new();
-            HttpResponseMessage response = await client.PostAsync(SendCodeUrl, new FormUrlEncodedContent(new[]
+            using HttpResponseMessage response = await client.PostAsync(SendCodeUrl, new FormUrlEncodedContent(new[]
             {
             new KeyValuePair<string, string>("email", EmailTextBox.Text),
 
@@ -99,7 +99,7 @@ namespace RHLauncher
         private async Task<string> VerifyCodeSendRequestAsync()
         {
             using HttpClient client = new();
-            HttpResponseMessage response = await client.PostAsync(VerifyCodeUrl, new FormUrlEncodedContent(new[]
+            using HttpResponseMessage response = await client.PostAsync(VerifyCodeUrl, new FormUrlEncodedContent(new[]
             {
             new KeyValuePair<string, string>("email", EmailTextBox.Text),
             new KeyValuePair<string, string>("verification_code", CodeTextBox.Text),
@@ -113,7 +113,7 @@ namespace RHLauncher
         private async Task<string> SendRequestAsync()
         {
             using HttpClient client = new();
-            HttpResponseMessage response = await client.PostAsync(RegisterUrl, new FormUrlEncodedContent(new[]
+            using HttpResponseMessage response = await client.PostAsync(RegisterUrl, new FormUrlEncodedContent(new[]
             {
             new KeyValuePair<string, string>("windyCode", NameTextBox.Text),
             new KeyValuePair<string, string>("email", EmailTextBox.Text),
diff --git a/RHLauncher/LauncherUpdater.cs b/RHLauncher/LauncherUpdater.cs
index c9b620e..70505e4 100644
--- a/RHLauncher/LauncherUpdater.cs
+++ b/RHLauncher/LauncherUpdater.cs
@@ -17,7 +17,7 @@ namespace RHLauncher
             try
             {
                 using HttpClient client = new();
-                HttpResponseMessage response = await client.GetAsync(LauncherVersionUrl);
+                using HttpResponseMessage response = await client.GetAsync(LauncherVersionUrl);
                 response.EnsureSuccessStatusCode();
                 string json = await response.Content.ReadAsStringAsync();
                 dynamic result = JsonConvert.DeserializeObject(json);