diff --git a/Bloxstrap/Bootstrapper.cs b/Bloxstrap/Bootstrapper.cs
index 3a4a181..a28ce22 100644
--- a/Bloxstrap/Bootstrapper.cs
+++ b/Bloxstrap/Bootstrapper.cs
@@ -252,7 +252,7 @@ namespace Bloxstrap
                 clientVersion = await RobloxDeployment.GetInfo(channel, AppData.BinaryType);
             }
 
-            key.SetValue("www.roblox.com", channel);
+            key.SetValueSafe("www.roblox.com", channel);
 
             _latestVersionGuid = clientVersion.VersionGuid;
 
@@ -724,7 +724,7 @@ namespace Bloxstrap
 
             using (var uninstallKey = Registry.CurrentUser.CreateSubKey(App.UninstallKey))
             {
-                uninstallKey.SetValue("EstimatedSize", totalSize);
+                uninstallKey.SetValueSafe("EstimatedSize", totalSize);
             }
 
             App.Logger.WriteLine(LOG_IDENT, $"Registered as {totalSize} KB");
diff --git a/Bloxstrap/Extensions/RegistryKeyEx.cs b/Bloxstrap/Extensions/RegistryKeyEx.cs
new file mode 100644
index 0000000..a5e9af4
--- /dev/null
+++ b/Bloxstrap/Extensions/RegistryKeyEx.cs
@@ -0,0 +1,21 @@
+using Microsoft.Win32;
+
+namespace Bloxstrap.Extensions
+{
+    public static class RegistryKeyEx
+    {
+        public static void SetValueSafe(this RegistryKey registryKey, string? name, object value)
+        {
+            try
+            {
+                App.Logger.WriteLine("RegistryKeyEx::SetValueSafe", $"Writing '{value}' to {registryKey}\\{name}");
+                registryKey.SetValue(name, value);
+            }
+            catch (UnauthorizedAccessException)
+            {
+                Frontend.ShowMessageBox(Strings.Dialog_RegistryWriteError, System.Windows.MessageBoxImage.Error);
+                App.Terminate();
+            }
+        }
+    }
+}
diff --git a/Bloxstrap/Installer.cs b/Bloxstrap/Installer.cs
index 59fc133..bda9f34 100644
--- a/Bloxstrap/Installer.cs
+++ b/Bloxstrap/Installer.cs
@@ -53,23 +53,23 @@ namespace Bloxstrap
             // TODO: registry access checks, i'll need to look back on issues to see what the error looks like
             using (var uninstallKey = Registry.CurrentUser.CreateSubKey(App.UninstallKey))
             {
-                uninstallKey.SetValue("DisplayIcon", $"{Paths.Application},0");
-                uninstallKey.SetValue("DisplayName", App.ProjectName);
+                uninstallKey.SetValueSafe("DisplayIcon", $"{Paths.Application},0");
+                uninstallKey.SetValueSafe("DisplayName", App.ProjectName);
 
-                uninstallKey.SetValue("DisplayVersion", App.Version);
+                uninstallKey.SetValueSafe("DisplayVersion", App.Version);
 
                 if (uninstallKey.GetValue("InstallDate") is null)
-                    uninstallKey.SetValue("InstallDate", DateTime.Now.ToString("yyyyMMdd"));
+                    uninstallKey.SetValueSafe("InstallDate", DateTime.Now.ToString("yyyyMMdd"));
 
-                uninstallKey.SetValue("InstallLocation", Paths.Base);
-                uninstallKey.SetValue("NoRepair", 1);
-                uninstallKey.SetValue("Publisher", App.ProjectOwner);
-                uninstallKey.SetValue("ModifyPath", $"\"{Paths.Application}\" -settings");
-                uninstallKey.SetValue("QuietUninstallString", $"\"{Paths.Application}\" -uninstall -quiet");
-                uninstallKey.SetValue("UninstallString", $"\"{Paths.Application}\" -uninstall");
-                uninstallKey.SetValue("HelpLink", App.ProjectHelpLink);
-                uninstallKey.SetValue("URLInfoAbout", App.ProjectSupportLink);
-                uninstallKey.SetValue("URLUpdateInfo", App.ProjectDownloadLink);
+                uninstallKey.SetValueSafe("InstallLocation", Paths.Base);
+                uninstallKey.SetValueSafe("NoRepair", 1);
+                uninstallKey.SetValueSafe("Publisher", App.ProjectOwner);
+                uninstallKey.SetValueSafe("ModifyPath", $"\"{Paths.Application}\" -settings");
+                uninstallKey.SetValueSafe("QuietUninstallString", $"\"{Paths.Application}\" -uninstall -quiet");
+                uninstallKey.SetValueSafe("UninstallString", $"\"{Paths.Application}\" -uninstall");
+                uninstallKey.SetValueSafe("HelpLink", App.ProjectHelpLink);
+                uninstallKey.SetValueSafe("URLInfoAbout", App.ProjectSupportLink);
+                uninstallKey.SetValueSafe("URLUpdateInfo", App.ProjectDownloadLink);
             }
 
             // only register player, for the scenario where the user installs bloxstrap, closes it,
@@ -426,12 +426,12 @@ namespace Bloxstrap
 
             using (var uninstallKey = Registry.CurrentUser.CreateSubKey(App.UninstallKey))
             {
-                uninstallKey.SetValue("DisplayVersion", App.Version);
+                uninstallKey.SetValueSafe("DisplayVersion", App.Version);
 
-                uninstallKey.SetValue("Publisher", App.ProjectOwner);
-                uninstallKey.SetValue("HelpLink", App.ProjectHelpLink);
-                uninstallKey.SetValue("URLInfoAbout", App.ProjectSupportLink);
-                uninstallKey.SetValue("URLUpdateInfo", App.ProjectDownloadLink);
+                uninstallKey.SetValueSafe("Publisher", App.ProjectOwner);
+                uninstallKey.SetValueSafe("HelpLink", App.ProjectHelpLink);
+                uninstallKey.SetValueSafe("URLInfoAbout", App.ProjectSupportLink);
+                uninstallKey.SetValueSafe("URLUpdateInfo", App.ProjectDownloadLink);
             }
 
             // update migrations
diff --git a/Bloxstrap/Resources/Strings.Designer.cs b/Bloxstrap/Resources/Strings.Designer.cs
index 8a3f4a5..82d3c72 100644
--- a/Bloxstrap/Resources/Strings.Designer.cs
+++ b/Bloxstrap/Resources/Strings.Designer.cs
@@ -1021,6 +1021,15 @@ namespace Bloxstrap.Resources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Bloxstrap is unable to write to the Windows Registry. An antivirus is likely interfering and causing issues. Please check to make sure there isn&apos;t anything that would restrict Bloxstrap&apos;s operation..
+        /// </summary>
+        public static string Dialog_RegistryWriteError {
+            get {
+                return ResourceManager.GetString("Dialog.RegistryWriteError", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Early 2015.
         /// </summary>
diff --git a/Bloxstrap/Resources/Strings.resx b/Bloxstrap/Resources/Strings.resx
index 231b03f..6ae9486 100644
--- a/Bloxstrap/Resources/Strings.resx
+++ b/Bloxstrap/Resources/Strings.resx
@@ -1204,4 +1204,7 @@ Please manually delete Bloxstrap.exe from the install location or try restarting
   <data name="Menu.Shortcuts.ExtractIcons.Description" xml:space="preserve">
     <value>To use for your shortcuts, right-click it, open properties, change icon, browse, and pick from the Icons folder.</value>
   </data>
+  <data name="Dialog.RegistryWriteError" xml:space="preserve">
+    <value>Bloxstrap is unable to write to the Windows Registry. An antivirus is likely interfering and causing issues. Please check to make sure there isn't anything that would restrict Bloxstrap's operation.</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/Bloxstrap/Utility/WindowsRegistry.cs b/Bloxstrap/Utility/WindowsRegistry.cs
index be2981c..23ca712 100644
--- a/Bloxstrap/Utility/WindowsRegistry.cs
+++ b/Bloxstrap/Utility/WindowsRegistry.cs
@@ -16,14 +16,14 @@ namespace Bloxstrap.Utility
 
             if (uriKey.GetValue("") is null)
             {
-                uriKey.SetValue("", $"URL: {name} Protocol");
-                uriKey.SetValue("URL Protocol", "");
+                uriKey.SetValueSafe("", $"URL: {name} Protocol");
+                uriKey.SetValueSafe("URL Protocol", "");
             }
 
             if (uriCommandKey.GetValue("") as string != handlerArgs)
             {
-                uriIconKey.SetValue("", handler);
-                uriCommandKey.SetValue("", handlerArgs);
+                uriIconKey.SetValueSafe("", handler);
+                uriCommandKey.SetValueSafe("", handlerArgs);
             }
         }
 
@@ -85,16 +85,16 @@ namespace Bloxstrap.Utility
             using RegistryKey uriCommandKey = uriOpenKey.CreateSubKey(@"command");
 
             if (uriKey.GetValue("") as string != keyValue)
-                uriKey.SetValue("", keyValue);
+                uriKey.SetValueSafe("", keyValue);
 
             if (uriCommandKey.GetValue("") as string != handlerArgs)
-                uriCommandKey.SetValue("", handlerArgs);
+                uriCommandKey.SetValueSafe("", handlerArgs);
 
             if (uriOpenKey.GetValue("") as string != "Open")
-                uriOpenKey.SetValue("", "Open");
+                uriOpenKey.SetValueSafe("", "Open");
 
             if (uriIconKey.GetValue("") as string != iconValue)
-                uriIconKey.SetValue("", iconValue);
+                uriIconKey.SetValueSafe("", iconValue);
         }
 
         public static void RegisterStudioFileType(string key)
@@ -103,7 +103,7 @@ namespace Bloxstrap.Utility
             uriKey.CreateSubKey(RobloxPlaceKey + @"\ShellNew");
 
             if (uriKey.GetValue("") as string != RobloxPlaceKey)
-                uriKey.SetValue("", RobloxPlaceKey);
+                uriKey.SetValueSafe("", RobloxPlaceKey);
         }
 
         public static void Unregister(string key)