diff --git a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHost.cs b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHost.cs
index 98e5ff2b1b4..8d8d3a557e1 100644
--- a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHost.cs
+++ b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHost.cs
@@ -224,7 +224,7 @@ internal static int Start(string bannerText, string helpText)
                         throw hostException;
                     }
 
-                    if (s_theConsoleHost.LoadPSReadline())
+                    if (LoadPSReadline())
                     {
                         ProfileOptimization.StartProfile("StartupProfileData-Interactive");
 
@@ -1156,6 +1156,10 @@ internal ConsoleHost()
             AppDomain.CurrentDomain.UnhandledException += handler;
         }
 
+        [System.Diagnostics.CodeAnalysis.SuppressMessage(
+            "Performance",
+            "CA1822:Mark members as static",
+            Justification = "Accesses instance members in preprocessor branch.")]
         private void BindBreakHandler()
         {
 #if UNIX
@@ -1598,7 +1602,7 @@ private bool IsScreenReaderActive()
             return _screenReaderActive.Value;
         }
 
-        private bool LoadPSReadline()
+        private static bool LoadPSReadline()
         {
             // Don't load PSReadline if:
             //   * we don't think the process will be interactive, e.g. -command or -file
@@ -1706,7 +1710,7 @@ private void DoCreateRunspace(string initialCommand, bool skipProfiles, bool sta
             DoRunspaceInitialization(skipProfiles, initialCommand, configurationName, initialCommandArgs);
         }
 
-        private void OpenConsoleRunspace(Runspace runspace, bool staMode)
+        private static void OpenConsoleRunspace(Runspace runspace, bool staMode)
         {
             if (staMode && Platform.IsWindowsDesktop)
             {
@@ -2726,7 +2730,7 @@ private DebuggerCommandResults ProcessDebugCommand(string cmd, out Exception e)
                 return results ?? new DebuggerCommandResults(DebuggerResumeAction.Continue, false);
             }
 
-            private bool IsIncompleteParseException(Exception e)
+            private static bool IsIncompleteParseException(Exception e)
             {
                 // Check e's type.
                 if (e is IncompleteParseException)
diff --git a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostRawUserInterface.cs b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostRawUserInterface.cs
index c4946b5431e..a189481ce98 100644
--- a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostRawUserInterface.cs
+++ b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostRawUserInterface.cs
@@ -548,7 +548,7 @@ public override
         /// Helper method to create and trace PipelineStoppedException.
         /// </summary>
         /// <returns></returns>
-        private PipelineStoppedException NewPipelineStoppedException()
+        private static PipelineStoppedException NewPipelineStoppedException()
         {
             PipelineStoppedException e = new PipelineStoppedException();
             return e;
diff --git a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostUserInterface.cs b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostUserInterface.cs
index bbe0a82bb15..c67db4cb525 100644
--- a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostUserInterface.cs
+++ b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostUserInterface.cs
@@ -619,7 +619,7 @@ private void WriteToConsole(ConsoleColor foregroundColor, ConsoleColor backgroun
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private void ConsoleOutWriteHelper(ReadOnlySpan<char> value, bool newLine)
+        private static void ConsoleOutWriteHelper(ReadOnlySpan<char> value, bool newLine)
         {
             if (newLine)
             {
@@ -1847,7 +1847,7 @@ private char GetCharacterUnderCursor(Coordinates cursorPosition)
         /// </summary>
         /// <param name="input">The string to process.</param>
         /// <returns>The string with any \0 characters removed...</returns>
-        private string RemoveNulls(string input)
+        private static string RemoveNulls(string input)
         {
             if (input.Contains('\0'))
             {
@@ -2042,7 +2042,7 @@ internal string ReadLineWithTabCompletion(Executor exec)
         }
 
 #if !UNIX
-        private void SendLeftArrows(int length)
+        private static void SendLeftArrows(int length)
         {
             var inputs = new ConsoleControl.INPUT[length * 2];
             for (int i = 0; i < length; i++)
diff --git a/src/Microsoft.PowerShell.ConsoleHost/host/msh/Executor.cs b/src/Microsoft.PowerShell.ConsoleHost/host/msh/Executor.cs
index 266d078ee68..68df51be539 100644
--- a/src/Microsoft.PowerShell.ConsoleHost/host/msh/Executor.cs
+++ b/src/Microsoft.PowerShell.ConsoleHost/host/msh/Executor.cs
@@ -342,7 +342,7 @@ internal Collection<PSObject> ExecuteCommand(string command, out Exception excep
             return ExecuteCommandHelper(tempPipeline, out exceptionThrown, options);
         }
 
-        private Command GetOutDefaultCommand(bool endOfStatement)
+        private static Command GetOutDefaultCommand(bool endOfStatement)
         {
             return new Command(command: "Out-Default",
                                isScript: false,
diff --git a/src/Microsoft.PowerShell.ConsoleHost/host/msh/PendingProgress.cs b/src/Microsoft.PowerShell.ConsoleHost/host/msh/PendingProgress.cs
index 31fdb49b35b..1588efe6b0e 100644
--- a/src/Microsoft.PowerShell.ConsoleHost/host/msh/PendingProgress.cs
+++ b/src/Microsoft.PowerShell.ConsoleHost/host/msh/PendingProgress.cs
@@ -298,6 +298,10 @@ internal override
             private int _oldestSoFar;
         }
 
+        [System.Diagnostics.CodeAnalysis.SuppressMessage(
+            "Performance",
+            "CA1822:Mark members as static",
+            Justification = "Accesses instance members in preprocessor branch.")]
         private
         ProgressNode
         FindOldestLeafmostNodeHelper(ArrayList treeToSearch, out ArrayList listWhereFound, out int indexWhereFound)