diff --git a/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditor.cs b/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditor.cs
index e9aa7fed..5ed1f434 100644
--- a/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditor.cs
+++ b/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditor.cs
@@ -51,6 +51,38 @@ namespace UniversalEditor.Editors.FileSystem
 
 		private const int DELIVERED_COLUMNS_COUNT = 5;
 
+		private string GetInvalidFileNameChars(FileSystemObjectModel fsom)
+		{
+			string invalidPathChars = ((UIApplication)Application.Instance).GetSetting<string>(FileSystemEditorSettingsGuids.InvalidPathChars);
+			return invalidPathChars;
+		}
+		private string GetInvalidFileNamesStr(FileSystemObjectModel fsom)
+		{
+			string invalidFileNamesStr = ((UIApplication)Application.Instance).GetSetting<string>(FileSystemEditorSettingsGuids.InvalidFileNames);
+			return invalidFileNamesStr;
+		}
+		private string[] GetInvalidFileNames(FileSystemObjectModel fsom)
+		{
+			string invalidFileNamesStr = GetInvalidFileNamesStr(fsom);
+			if (String.IsNullOrEmpty(invalidFileNamesStr))
+				return new string[0];
+
+			string[] invalidFileNames = invalidFileNamesStr.Split(new char[] { ',' });
+			return invalidFileNames;
+		}
+		private bool CheckValidFileName(FileSystemObjectModel fsom, string filename)
+		{
+			string invalidPathChars = GetInvalidFileNameChars(fsom);
+			string[] invalidFileNames = GetInvalidFileNames(fsom);
+
+			// string[] filePath = filename.Split(fsom.PathSeparators);
+			string fileTitle = filename; // filePath[filePath.Length - 1];
+
+			bool containsInvalidFileNames = invalidFileNames.Length > 0 && fileTitle.EqualsAny(invalidFileNames);
+			bool containsInvalidChars = String.IsNullOrEmpty(invalidPathChars) || fileTitle.ContainsAny(invalidPathChars.ToCharArray());
+			return !(containsInvalidFileNames || containsInvalidChars);
+		}
+
 		[EventHandler(nameof(txtPath), "KeyDown")]
 		private void txtPath_KeyDown(object sender, KeyEventArgs e)
 		{
diff --git a/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditorSettingsGuids.cs b/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditorSettingsGuids.cs
index 43080018..8b0bb46d 100644
--- a/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditorSettingsGuids.cs
+++ b/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditorSettingsGuids.cs
@@ -24,5 +24,7 @@ namespace UniversalEditor.Editors.FileSystem
 	public class FileSystemEditorSettingsGuids
 	{
 		public static Guid SingleClickToOpenItems { get; } = new Guid("{409C4308-BA99-489F-BD33-4122E430709D}");
+		public static Guid InvalidPathChars { get; } = new Guid("{2fd5348a-2a74-4cdf-9f07-43011b109bde}");
+		public static Guid InvalidFileNames { get; } = new Guid("{bfc2323b-a628-419c-827b-fed169ce176e}");
 	}
 }
diff --git a/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditorSettingsProvider.xml b/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditorSettingsProvider.xml
index 70a97fc9..262c9743 100644
--- a/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditorSettingsProvider.xml
+++ b/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditorSettingsProvider.xml
@@ -47,6 +47,17 @@
 					<Part>Search and Preview</Part>
 				</Path>
 			</SettingsGroup>
+			<SettingsGroup ID="{e8c41127-956e-49a4-a409-deb62590d4be}">
+				<Path>
+					<Part>Editors</Part>
+					<Part>File System</Part>
+					<Part>Compatibility</Part>
+				</Path>
+				<Settings>
+					<TextSetting ID="{2fd5348a-2a74-4cdf-9f07-43011b109bde}" Name="InvalidPathChars" Title="Invalid filename characters" Value="/&lt;&gt;:&quot;\\|?*" />
+					<TextSetting ID="{bfc2323b-a628-419c-827b-fed169ce176e}" Name="InvalidFileNames" Title="Invalid filenames" Value="CON,PRN,AUX,NUL,COM1,COM2,COM3,COM4,COM5,COM6,COM7,COM8,COM9,LPT1,LPT2,LPT3,LPT4,LPT5,LPT6,LPT7,LPT8,LPT9" />
+				</Settings>
+			</SettingsGroup>
 		</SettingsProvider>
 	</SettingsProviders>
 </ApplicationFramework>