Update MicrosoftStoreUpdateService.cs

Author: d2dyno1

src/Platforms/SecureFolderFS.Uno/Platforms/Windows/ServiceImplementation/MicrosoftStoreUpdateService.cs

@@ -94,7 +94,13 @@ public async Task<IResult> UpdateAsync(IProgress<double>? progress, Cancellation
 
         private async Task<bool> SetStoreContextAsync()
         {
-            _storeContext ??= await Task.Run(StoreContext.GetDefault);
+            if (_storeContext is null)
+            {
+                _storeContext = await Task.Run(StoreContext.GetDefault);
+                if (_storeContext is not null)
+                    WinRT_InitializeObject(_storeContext);
+            }
+
             return _storeContext is not null;
         }
 
@@ -114,5 +120,14 @@ private static AppUpdateResultType GetAppUpdateResultType(StorePackageUpdateStat
                 _ => AppUpdateResultType.None
             };
         }
+
+        private static void WinRT_InitializeObject(object obj)
+        {
+            _ = obj;
+#if WINDOWS
+            var hwnd = WinRT.Interop.WindowNative.GetWindowHandle(App.Instance?.MainWindow);
+            WinRT.Interop.InitializeWithWindow.Initialize(obj, hwnd);
+#endif
+        }
     }
 }