diff --git a/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/CoreCLR/HttpKnownHeaderNames.cs b/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/CoreCLR/HttpKnownHeaderNames.cs
index 84e96e3467..30ad227c7a 100644
--- a/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/CoreCLR/HttpKnownHeaderNames.cs
+++ b/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/CoreCLR/HttpKnownHeaderNames.cs
@@ -6,7 +6,7 @@ using System.Collections.Generic;
 
 namespace Microsoft.PowerShell.Commands
 {
-    internal static partial class HttpKnownHeaderNames
+    internal static class HttpKnownHeaderNames
     {
         #region Known_HTTP_Header_Names
 
diff --git a/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/CoreCLR/WebResponseHelper.CoreClr.cs b/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/CoreCLR/WebResponseHelper.CoreClr.cs
index 7b11884057..dc2f734d6b 100644
--- a/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/CoreCLR/WebResponseHelper.CoreClr.cs
+++ b/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/CoreCLR/WebResponseHelper.CoreClr.cs
@@ -8,7 +8,7 @@ using System.Net.Http;
 
 namespace Microsoft.PowerShell.Commands
 {
-    internal static partial class WebResponseHelper
+    internal static class WebResponseHelper
     {
         internal static string GetCharacterSet(HttpResponseMessage response)
         {
diff --git a/src/Microsoft.WSMan.Management/ConfigProvider.cs b/src/Microsoft.WSMan.Management/ConfigProvider.cs
index 3738af380f..9ded9e76f0 100644
--- a/src/Microsoft.WSMan.Management/ConfigProvider.cs
+++ b/src/Microsoft.WSMan.Management/ConfigProvider.cs
@@ -24,7 +24,7 @@ namespace Microsoft.WSMan.Management
     /// WsMan Provider.
     /// </summary>
     [CmdletProvider(WSManStringLiterals.ProviderName, ProviderCapabilities.Credentials)]
-    public sealed partial class WSManConfigProvider : NavigationCmdletProvider, ICmdletProviderSupportsHelp
+    public sealed class WSManConfigProvider : NavigationCmdletProvider, ICmdletProviderSupportsHelp
     {
         // Plugin Name Storage
         private PSObject objPluginNames = null;
diff --git a/src/System.Management.Automation/engine/cmdlet.cs b/src/System.Management.Automation/engine/cmdlet.cs
index 00890bb31a..b676337531 100644
--- a/src/System.Management.Automation/engine/cmdlet.cs
+++ b/src/System.Management.Automation/engine/cmdlet.cs
@@ -30,7 +30,7 @@ namespace System.Management.Automation
     /// task, extending the Cmdlet or PSCmdlet classes only as a thin management layer.
     /// </remarks>
     /// <seealso cref="System.Management.Automation.Internal.InternalCommand"/>
-    public abstract partial class Cmdlet : InternalCommand
+    public abstract class Cmdlet : InternalCommand
     {
         #region public_properties
 
diff --git a/src/System.Management.Automation/engine/interpreter/DynamicSplatInstruction.cs b/src/System.Management.Automation/engine/interpreter/DynamicSplatInstruction.cs
index 0bb35e1ff2..ab7aa891a2 100644
--- a/src/System.Management.Automation/engine/interpreter/DynamicSplatInstruction.cs
+++ b/src/System.Management.Automation/engine/interpreter/DynamicSplatInstruction.cs
@@ -20,7 +20,7 @@ namespace System.Management.Automation.Interpreter
     /// <summary>
     /// Implements dynamic call site with many arguments. Wraps the arguments into <see cref="ArgumentArray"/>.
     /// </summary>
-    internal sealed partial class DynamicSplatInstruction : Instruction
+    internal sealed class DynamicSplatInstruction : Instruction
     {
         private readonly CallSite<Func<CallSite, ArgumentArray, object>> _site;
         private readonly int _argumentCount;
diff --git a/src/System.Management.Automation/engine/interpreter/Instruction.cs b/src/System.Management.Automation/engine/interpreter/Instruction.cs
index f2072b2a48..0a46fd88df 100644
--- a/src/System.Management.Automation/engine/interpreter/Instruction.cs
+++ b/src/System.Management.Automation/engine/interpreter/Instruction.cs
@@ -22,7 +22,7 @@ namespace System.Management.Automation.Interpreter
         void AddInstructions(LightCompiler compiler);
     }
 
-    internal abstract partial class Instruction
+    internal abstract class Instruction
     {
         public const int UnknownInstrIndex = int.MaxValue;
 
diff --git a/src/System.Management.Automation/engine/interpreter/Utilities.cs b/src/System.Management.Automation/engine/interpreter/Utilities.cs
index 85d7c09841..2ea3258120 100644
--- a/src/System.Management.Automation/engine/interpreter/Utilities.cs
+++ b/src/System.Management.Automation/engine/interpreter/Utilities.cs
@@ -126,7 +126,7 @@ namespace System.Management.Automation.Interpreter
         }
     }
 
-    internal static partial class DelegateHelpers
+    internal static class DelegateHelpers
     {
         #region Generated Maximum Delegate Arity
 
diff --git a/src/System.Management.Automation/engine/remoting/commands/PSRemotingCmdlet.cs b/src/System.Management.Automation/engine/remoting/commands/PSRemotingCmdlet.cs
index 248c3a5718..ef9236f5bf 100644
--- a/src/System.Management.Automation/engine/remoting/commands/PSRemotingCmdlet.cs
+++ b/src/System.Management.Automation/engine/remoting/commands/PSRemotingCmdlet.cs
@@ -27,7 +27,7 @@ namespace Microsoft.PowerShell.Commands
     /// It contains tons of utility functions which are used all
     /// across the remoting cmdlets.
     /// </summary>
-    public abstract partial class PSRemotingCmdlet : PSCmdlet
+    public abstract class PSRemotingCmdlet : PSCmdlet
     {
         #region Overrides
 
@@ -296,7 +296,7 @@ namespace Microsoft.PowerShell.Commands
     ///     2. Invoke-Expression
     ///     3. Start-PSJob.
     /// </summary>
-    public abstract partial class PSRemotingBaseCmdlet : PSRemotingCmdlet
+    public abstract class PSRemotingBaseCmdlet : PSRemotingCmdlet
     {
         #region Enums
 
@@ -1149,7 +1149,7 @@ namespace Microsoft.PowerShell.Commands
     ///     1. Invoke-Expression
     ///     2. Start-PSJob.
     /// </summary>
-    public abstract partial class PSExecutionCmdlet : PSRemotingBaseCmdlet
+    public abstract class PSExecutionCmdlet : PSRemotingBaseCmdlet
     {
         #region Strings
 
@@ -2448,7 +2448,7 @@ namespace Microsoft.PowerShell.Commands
     ///     3. Disconnect-PSSession
     ///     4. Connect-PSSession.
     /// </summary>
-    public abstract partial class PSRunspaceCmdlet : PSRemotingCmdlet
+    public abstract class PSRunspaceCmdlet : PSRemotingCmdlet
     {
         #region Parameters
 
@@ -3222,7 +3222,7 @@ namespace Microsoft.PowerShell.Commands
     /// Base class for both the helpers. This is an abstract class
     /// and the helpers need to derive from this.
     /// </summary>
-    internal abstract partial class ExecutionCmdletHelper : IThrottleOperation
+    internal abstract class ExecutionCmdletHelper : IThrottleOperation
     {
         /// <summary>
         /// Pipeline associated with this operation.
diff --git a/src/System.Management.Automation/utils/ExtensionMethods.cs b/src/System.Management.Automation/utils/ExtensionMethods.cs
index 93951bb1ac..127c9a226c 100644
--- a/src/System.Management.Automation/utils/ExtensionMethods.cs
+++ b/src/System.Management.Automation/utils/ExtensionMethods.cs
@@ -68,7 +68,7 @@ namespace System.Management.Automation
     /// * If you want to add an extension method that will be used only by CoreCLR powershell, please add it to the partial
     ///   'PSTypeExtensions' class in 'CorePsExtensions.cs'.
     /// </summary>
-    internal static partial class PSTypeExtensions
+    internal static class PSTypeExtensions
     {
         /// <summary>
         /// Check does the type have an instance default constructor with visibility that allows calling it from subclass.