diff --git a/Source/ChocolateyGui.Common.Windows/ViewModels/LocalSourceViewModel.cs b/Source/ChocolateyGui.Common.Windows/ViewModels/LocalSourceViewModel.cs
index 24f38da39..d784f412a 100644
--- a/Source/ChocolateyGui.Common.Windows/ViewModels/LocalSourceViewModel.cs
+++ b/Source/ChocolateyGui.Common.Windows/ViewModels/LocalSourceViewModel.cs
@@ -29,6 +29,7 @@
 using ChocolateyGui.Common.ViewModels.Items;
 using ChocolateyGui.Common.Windows.Services;
 using ChocolateyGui.Common.Windows.Utilities.Extensions;
+using MahApps.Metro.Controls.Dialogs;
 using Serilog;
 
 namespace ChocolateyGui.Common.Windows.ViewModels
@@ -45,6 +46,7 @@ public sealed class LocalSourceViewModel : Screen, ISourceViewModelBase, IHandle
         private readonly IAllowedCommandsService _allowedCommandsService;
         private readonly IEventAggregator _eventAggregator;
         private readonly IMapper _mapper;
+        private readonly IDialogCoordinator _dialogCoordinator;
         private bool _exportAll = true;
         private bool _hasLoaded;
         private bool _matchWord;
@@ -68,7 +70,8 @@ public LocalSourceViewModel(
             IAllowedCommandsService allowedCommandsService,
             IEventAggregator eventAggregator,
             string displayName,
-            IMapper mapper)
+            IMapper mapper,
+            IDialogCoordinator dialogCoordinator)
         {
             _chocolateyService = chocolateyService;
             _progressService = progressService;
@@ -91,6 +94,7 @@ public LocalSourceViewModel(
 
             _eventAggregator = eventAggregator;
             _mapper = mapper;
+            _dialogCoordinator = dialogCoordinator;
             _eventAggregator.Subscribe(this);
         }
 
@@ -182,30 +186,44 @@ public async void UpdateAll()
         {
             try
             {
-                await _progressService.StartLoading(Resources.LocalSourceViewModel_Packages, true);
-                IsLoading = true;
-
-                _progressService.WriteMessage(Resources.LocalSourceViewModel_FetchingPackages);
-                var token = _progressService.GetCancellationToken();
-                var packages = Packages.Where(p => p.CanUpdate && !p.IsPinned).ToList();
-                double current = 0.0f;
-                foreach (var package in packages)
+                var result = await _dialogCoordinator.ShowMessageAsync(
+                    this,
+                    Resources.Dialog_AreYouSureTitle,
+                    Resources.Dialog_AreYouSureUpdateAllMessage,
+                    MessageDialogStyle.AffirmativeAndNegative,
+                    new MetroDialogSettings
+                    {
+                        AffirmativeButtonText = Resources.Dialog_Yes,
+                        NegativeButtonText = Resources.Dialog_No
+                    });
+
+                if (result == MessageDialogResult.Affirmative)
                 {
-                    if (token.IsCancellationRequested)
+                    await _progressService.StartLoading(Resources.LocalSourceViewModel_Packages, true);
+                    IsLoading = true;
+
+                    _progressService.WriteMessage(Resources.LocalSourceViewModel_FetchingPackages);
+                    var token = _progressService.GetCancellationToken();
+                    var packages = Packages.Where(p => p.CanUpdate && !p.IsPinned).ToList();
+                    double current = 0.0f;
+                    foreach (var package in packages)
                     {
-                        await _progressService.StopLoading();
-                        IsLoading = false;
-                        return;
+                        if (token.IsCancellationRequested)
+                        {
+                            await _progressService.StopLoading();
+                            IsLoading = false;
+                            return;
+                        }
+
+                        _progressService.Report(Math.Min(current++ / packages.Count, 100));
+                        await package.Update();
                     }
 
-                    _progressService.Report(Math.Min(current++ / packages.Count, 100));
-                    await package.Update();
+                    await _progressService.StopLoading();
+                    IsLoading = false;
+                    ShowOnlyPackagesWithUpdate = false;
+                    RefreshPackages();
                 }
-
-                await _progressService.StopLoading();
-                IsLoading = false;
-                ShowOnlyPackagesWithUpdate = false;
-                RefreshPackages();
             }
             catch (Exception ex)
             {
diff --git a/Source/ChocolateyGui.Common.Windows/Views/LocalSourceView.xaml b/Source/ChocolateyGui.Common.Windows/Views/LocalSourceView.xaml
index 0ac64193b..0c275b24c 100644
--- a/Source/ChocolateyGui.Common.Windows/Views/LocalSourceView.xaml
+++ b/Source/ChocolateyGui.Common.Windows/Views/LocalSourceView.xaml
@@ -17,7 +17,8 @@
              mc:Ignorable="d"
              d:DesignHeight="768" d:DesignWidth="1366"
              d:DataContext="{d:DesignInstance viewModels:LocalSourceViewModel}"
-             Background="{DynamicResource MahApps.Brushes.ThemeBackground}">
+             Background="{DynamicResource MahApps.Brushes.ThemeBackground}"
+             mahapps:DialogParticipation.Register="{Binding}">
 
     <UserControl.Resources>
         <utilities:BindingProxy x:Key="BindingProxy" Data="{Binding}" />
diff --git a/Source/ChocolateyGui.Common/Properties/Resources.Designer.cs b/Source/ChocolateyGui.Common/Properties/Resources.Designer.cs
index 9882611dd..a06598583 100644
--- a/Source/ChocolateyGui.Common/Properties/Resources.Designer.cs
+++ b/Source/ChocolateyGui.Common/Properties/Resources.Designer.cs
@@ -758,6 +758,15 @@ public static string Dialog_AreYouSureTitle {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to This action, depending on the number of currently outdated packages, may take a long time to complete. Are you sure that you want to continue?.
+        /// </summary>
+        public static string Dialog_AreYouSureUpdateAllMessage {
+            get {
+                return ResourceManager.GetString("Dialog_AreYouSureUpdateAllMessage", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to No.
         /// </summary>
diff --git a/Source/ChocolateyGui.Common/Properties/Resources.resx b/Source/ChocolateyGui.Common/Properties/Resources.resx
index e0bdede5e..ea788a9c3 100644
--- a/Source/ChocolateyGui.Common/Properties/Resources.resx
+++ b/Source/ChocolateyGui.Common/Properties/Resources.resx
@@ -1044,4 +1044,7 @@ Please contact your System Administrator to enable this operation.</value>
     <value>This action will remove the '{0}' source from both Chocolatey and Chocolatey GUI.  Are you sure you want to proceed (this action cannot be undone)?</value>
     <comment>{0} = The id of the source which is away to be deleted, i.e. chocolatey, chocolatey.licensed, etc</comment>
   </data>
+  <data name="Dialog_AreYouSureUpdateAllMessage" xml:space="preserve">
+    <value>This action, depending on the number of currently outdated packages, may take a long time to complete. Are you sure that you want to continue?</value>
+  </data>
 </root>
\ No newline at end of file