diff --git a/.editorconfig b/.editorconfig
index cdb71b91aa..74496fb9a7 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -48,6 +48,8 @@ indent_size = 2
 # Sort using and Import directives with System.* appearing first
 dotnet_sort_system_directives_first = true
 
+file_header_template = Copyright (c) Microsoft Corporation.\nLicensed under the MIT License.
+
 # Modifier preferences
 csharp_preferred_modifier_order = public,private,protected,internal,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,volatile,async:suggestion
 
diff --git a/src/Microsoft.PowerShell.Commands.Utility/commands/utility/RunspaceAttribute.cs b/src/Microsoft.PowerShell.Commands.Utility/commands/utility/RunspaceAttribute.cs
index ee976bd562..7940681468 100644
--- a/src/Microsoft.PowerShell.Commands.Utility/commands/utility/RunspaceAttribute.cs
+++ b/src/Microsoft.PowerShell.Commands.Utility/commands/utility/RunspaceAttribute.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
+// Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
 #pragma warning disable 1634, 1691
diff --git a/test/xUnit/csharp/test_CryptoUtils.cs b/test/xUnit/csharp/test_CryptoUtils.cs
index aac3be4e29..0f737a9426 100644
--- a/test/xUnit/csharp/test_CryptoUtils.cs
+++ b/test/xUnit/csharp/test_CryptoUtils.cs
@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
 using System;
 using System.Management.Automation.Internal;
 using System.Text;