diff --git a/Permadelete.FrontEnd/Properties/AssemblyInfo.cs b/Permadelete.FrontEnd/Properties/AssemblyInfo.cs
index d3a1619..d818638 100644
--- a/Permadelete.FrontEnd/Properties/AssemblyInfo.cs
+++ b/Permadelete.FrontEnd/Properties/AssemblyInfo.cs
@@ -51,5 +51,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.5.1.0")]
-[assembly: AssemblyFileVersion("0.5.1.0")]
+[assembly: AssemblyVersion("0.5.2.0")]
+[assembly: AssemblyFileVersion("0.5.2.0")]
diff --git a/Permadelete.FrontEnd/ViewModels/OperationVM.cs b/Permadelete.FrontEnd/ViewModels/OperationVM.cs
index 6270a62..7aa9b35 100644
--- a/Permadelete.FrontEnd/ViewModels/OperationVM.cs
+++ b/Permadelete.FrontEnd/ViewModels/OperationVM.cs
@@ -172,10 +172,17 @@ public string Size
         #region Methods
         private async void CalculateBytes()
         {
-            if (File.Exists(Path))
-                _bytes = new FileInfo(Path).Length;
-            else if (Directory.Exists(Path))
-                _bytes = await ShredderService.Instance.GetFolderSize(new DirectoryInfo(Path));
+            try
+            {
+                if (File.Exists(Path))
+                    _bytes = new FileInfo(Path).Length;
+                else if (Directory.Exists(Path))
+                    _bytes = await ShredderService.Instance.GetFolderSize(new DirectoryInfo(Path));
+            }
+            catch (UnauthorizedAccessException)
+            {
+                _bytes = -1;
+            }
 
             RaisePropertyChanged(nameof(Bytes));
             RaisePropertyChanged(nameof(Size));