diff --git a/xml/System.Diagnostics/Process.xml b/xml/System.Diagnostics/Process.xml
index ecd75286f2f..1bfd4d036ae 100644
--- a/xml/System.Diagnostics/Process.xml
+++ b/xml/System.Diagnostics/Process.xml
@@ -1,4 +1,4 @@
-<Type Name="Process" FullName="System.Diagnostics.Process">
+<Type Name="Process" FullName="System.Diagnostics.Process">
   <TypeSignature Language="C#" Value="public class Process : System.ComponentModel.Component, IDisposable" FrameworkAlternate="net-5.0" />
   <TypeSignature Language="ILAsm" Value=".class public auto ansi beforefieldinit Process extends System.ComponentModel.Component implements class System.IDisposable" FrameworkAlternate="net-5.0" />
   <TypeSignature Language="DocId" Value="T:System.Diagnostics.Process" />
@@ -39,8 +39,7 @@
     <BaseTypeName>System.ComponentModel.Component</BaseTypeName>
     <BaseTypeName FrameworkAlternate="netcore-1.0;netcore-1.1">System.Object</BaseTypeName>
   </Base>
-  <Interfaces>
-  </Interfaces>
+  <Interfaces />
   <Attributes>
     <Attribute FrameworkAlternate="netframework-1.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netstandard-2.0;xamarinandroid-7.1;xamarinios-10.8;xamarinmac-3.0;netframework-4.8;netstandard-2.1">
       <AttributeName>System.ComponentModel.DefaultEvent("Exited")</AttributeName>
@@ -774,7 +773,7 @@ process.BeginOutputReadLine();
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
+        <summary>Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.</summary>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -2094,7 +2093,7 @@ There are problems accessing the performance counter API's used to get process i
     </Member>
     <MemberGroup MemberName="Kill">
       <Docs>
-        <summary>To be added.</summary>
+        <summary>Forces termination of the underlying process.</summary>
         <remarks>
           <format type="text/markdown"><![CDATA[  
   
@@ -6083,10 +6082,18 @@ The file specified in the <paramref name="fileName" /> could not be found.
         <Parameter Name="cancellationToken" Type="System.Threading.CancellationToken" Index="0" FrameworkAlternate="net-5.0" />
       </Parameters>
       <Docs>
-        <param name="cancellationToken">To be added.</param>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
-        <remarks>To be added.</remarks>
+        <param name="cancellationToken">An optional token to cancel the asynchronous operation.</param>
+        <summary>Instructs the process component to wait for the associated process to exit, or for the <paramref name="cancellationToken" /> to be cancelled.</summary>
+        <returns>A task that will complete when the process has exited, cancellation has been requested, or an error occurs.</returns>
+        <remarks>
+          <format type="text/markdown"><![CDATA[
+
+## Remarks
+
+Calling this method will set <xref:System.Diagnostics.Process.EnableRaisingEvents> to `true`.
+
+          ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <MemberGroup MemberName="WaitForInputIdle">
diff --git a/xml/System.Diagnostics/ProcessModuleCollection.xml b/xml/System.Diagnostics/ProcessModuleCollection.xml
index 7daf08e3714..951994ba311 100644
--- a/xml/System.Diagnostics/ProcessModuleCollection.xml
+++ b/xml/System.Diagnostics/ProcessModuleCollection.xml
@@ -1,4 +1,4 @@
-<Type Name="ProcessModuleCollection" FullName="System.Diagnostics.ProcessModuleCollection">
+<Type Name="ProcessModuleCollection" FullName="System.Diagnostics.ProcessModuleCollection">
   <TypeSignature Language="C#" Value="public class ProcessModuleCollection : System.Collections.ReadOnlyCollectionBase" FrameworkAlternate="net-5.0;netcore-2.0;netcore-2.1;netcore-2.2;netcore-3.0;netcore-3.1;netframework-1.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netstandard-2.0;netstandard-2.1;xamarinandroid-7.1;xamarinios-10.8;xamarinmac-3.0" />
   <TypeSignature Language="ILAsm" Value=".class public auto ansi beforefieldinit ProcessModuleCollection extends System.Collections.ReadOnlyCollectionBase" FrameworkAlternate="net-5.0;netcore-2.0;netcore-2.1;netcore-2.2;netcore-3.0;netcore-3.1;netframework-1.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netstandard-2.0;netstandard-2.1;xamarinandroid-7.1;xamarinios-10.8;xamarinmac-3.0" />
   <TypeSignature Language="DocId" Value="T:System.Diagnostics.ProcessModuleCollection" />
@@ -34,8 +34,7 @@
     <BaseTypeName>System.Collections.ReadOnlyCollectionBase</BaseTypeName>
     <BaseTypeName FrameworkAlternate="netcore-1.0;netcore-1.1">System.Object</BaseTypeName>
   </Base>
-  <Interfaces>
-  </Interfaces>
+  <Interfaces />
   <Docs>
     <summary>Provides a strongly typed collection of <see cref="T:System.Diagnostics.ProcessModule" /> objects.</summary>
     <remarks>
@@ -650,8 +649,8 @@
         <ReturnType>System.Int32</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>To be added.</summary>
-        <value>To be added.</value>
+        <summary>Gets the number of elements contained in the collection.</summary>
+        <value>The number of elements contained in the collection.</value>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -1088,8 +1087,8 @@
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
+        <summary>Returns an enumerator that iterates through a collection.</summary>
+        <returns>An enumerator object that can be used to iterate through the collection.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -1862,9 +1861,9 @@
         <Parameter Name="index" Type="System.Int32" Index="1" FrameworkAlternate="netcore-1.0;netcore-1.1" />
       </Parameters>
       <Docs>
-        <param name="array">To be added.</param>
-        <param name="index">To be added.</param>
-        <summary>To be added.</summary>
+        <param name="array">The one-dimensional array that is the destination of the elements copied from collection. The array must have zero-based indexing.</param>
+        <param name="index">The zero-based index in <paramref name="array" /> at which copying begins.</param>
+        <summary>Copies the elements of the collection to an array, starting at a particular array index.</summary>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -1893,9 +1892,18 @@
         <ReturnType>System.Boolean</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>To be added.</summary>
-        <value>To be added.</value>
-        <remarks>To be added.</remarks>
+        <summary>Gets a value indicating whether access to the collection is synchronized (thread safe).</summary>
+        <value>
+          <see langword="true" /> if access to the collection is synchronized (thread safe); otherwise, <see langword="false" />.</value>
+        <remarks>
+          <format type="text/markdown"><![CDATA[
+
+## Remarks
+
+This member is an explicit interface member implementation. It can be used only when the <xref:System.Diagnostics.ProcessModuleCollection> instance is cast to an <xref:System.Collections.ICollection> interface.
+
+          ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <Member MemberName="System.Collections.ICollection.SyncRoot">
@@ -1923,9 +1931,17 @@
         <ReturnType>System.Object</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>To be added.</summary>
-        <value>To be added.</value>
-        <remarks>To be added.</remarks>
+        <summary>Gets an object that can be used to synchronize access to the collection.</summary>
+        <value>An object that can be used to synchronize access to the collection.</value>
+        <remarks>
+          <format type="text/markdown"><![CDATA[
+
+## Remarks
+
+This member is an explicit interface member implementation. It can be used only when the <xref:System.Diagnostics.ProcessModuleCollection> instance is cast to an <xref:System.Collections.ICollection> interface.
+
+          ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <Member MemberName="ToArray">
diff --git a/xml/System.Diagnostics/ProcessThreadCollection.xml b/xml/System.Diagnostics/ProcessThreadCollection.xml
index 3ef62541dc0..c2113b5b33a 100644
--- a/xml/System.Diagnostics/ProcessThreadCollection.xml
+++ b/xml/System.Diagnostics/ProcessThreadCollection.xml
@@ -1,4 +1,4 @@
-<Type Name="ProcessThreadCollection" FullName="System.Diagnostics.ProcessThreadCollection">
+<Type Name="ProcessThreadCollection" FullName="System.Diagnostics.ProcessThreadCollection">
   <TypeSignature Language="C#" Value="public class ProcessThreadCollection : System.Collections.ReadOnlyCollectionBase" FrameworkAlternate="net-5.0;netcore-2.0;netcore-2.1;netcore-2.2;netcore-3.0;netcore-3.1;netframework-1.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netstandard-2.0;netstandard-2.1;xamarinandroid-7.1;xamarinios-10.8;xamarinmac-3.0" />
   <TypeSignature Language="ILAsm" Value=".class public auto ansi beforefieldinit ProcessThreadCollection extends System.Collections.ReadOnlyCollectionBase" FrameworkAlternate="net-5.0;netcore-2.0;netcore-2.1;netcore-2.2;netcore-3.0;netcore-3.1;netframework-1.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netstandard-2.0;netstandard-2.1;xamarinandroid-7.1;xamarinios-10.8;xamarinmac-3.0" />
   <TypeSignature Language="DocId" Value="T:System.Diagnostics.ProcessThreadCollection" />
@@ -34,8 +34,7 @@
     <BaseTypeName>System.Collections.ReadOnlyCollectionBase</BaseTypeName>
     <BaseTypeName FrameworkAlternate="netcore-1.0;netcore-1.1">System.Object</BaseTypeName>
   </Base>
-  <Interfaces>
-  </Interfaces>
+  <Interfaces />
   <Docs>
     <summary>Provides a strongly typed collection of <see cref="T:System.Diagnostics.ProcessThread" /> objects.</summary>
     <remarks>To be added.</remarks>
@@ -647,8 +646,8 @@
         <ReturnType>System.Int32</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>To be added.</summary>
-        <value>To be added.</value>
+        <summary>Gets the number of elements contained in the collection.</summary>
+        <value>The number of elements contained in the collection.</value>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -1085,8 +1084,8 @@
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
-        <returns>To be added.</returns>
+        <summary>Returns an enumerator that iterates through a collection.</summary>
+        <returns>An enumerator object that can be used to iterate through the collection.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -1868,9 +1867,9 @@
         <Parameter Name="index" Type="System.Int32" Index="1" FrameworkAlternate="netcore-1.0;netcore-1.1" />
       </Parameters>
       <Docs>
-        <param name="array">To be added.</param>
-        <param name="index">To be added.</param>
-        <summary>To be added.</summary>
+        <param name="array">The one-dimensional array that is the destination of the elements copied from collection. The array must have zero-based indexing.</param>
+        <param name="index">The zero-based index in <paramref name="array" /> at which copying begins.</param>
+        <summary>Copies the elements of the collection to an array, starting at a particular array index.</summary>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -1899,9 +1898,18 @@
         <ReturnType>System.Boolean</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>To be added.</summary>
-        <value>To be added.</value>
-        <remarks>To be added.</remarks>
+        <summary>Gets a value indicating whether access to the collection is synchronized (thread safe).</summary>
+        <value>
+          <see langword="true" /> if access to the collection is synchronized (thread safe); otherwise, <see langword="false" />.</value>
+        <remarks>
+          <format type="text/markdown"><![CDATA[
+
+## Remarks
+
+This member is an explicit interface member implementation. It can be used only when the <xref:System.Diagnostics.ProcessThreadCollection> instance is cast to an <xref:System.Collections.ICollection> interface.
+
+          ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <Member MemberName="System.Collections.ICollection.SyncRoot">
@@ -1929,9 +1937,17 @@
         <ReturnType>System.Object</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>To be added.</summary>
-        <value>To be added.</value>
-        <remarks>To be added.</remarks>
+        <summary>Gets an object that can be used to synchronize access to the collection.</summary>
+        <value>An object that can be used to synchronize access to the collection.</value>
+        <remarks>
+          <format type="text/markdown"><![CDATA[
+
+## Remarks
+
+This member is an explicit interface member implementation. It can be used only when the <xref:System.Diagnostics.ProcessThreadCollection> instance is cast to an <xref:System.Collections.ICollection> interface.
+
+          ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <Member MemberName="ToArray">
diff --git a/xml/System.Diagnostics/TraceListenerCollection.xml b/xml/System.Diagnostics/TraceListenerCollection.xml
index 8ea4974453f..19830321de7 100644
--- a/xml/System.Diagnostics/TraceListenerCollection.xml
+++ b/xml/System.Diagnostics/TraceListenerCollection.xml
@@ -1,4 +1,4 @@
-<Type Name="TraceListenerCollection" FullName="System.Diagnostics.TraceListenerCollection">
+<Type Name="TraceListenerCollection" FullName="System.Diagnostics.TraceListenerCollection">
   <TypeSignature Language="C#" Value="public class TraceListenerCollection : System.Collections.IList" />
   <TypeSignature Language="ILAsm" Value=".class public auto ansi beforefieldinit TraceListenerCollection extends System.Object implements class System.Collections.ICollection, class System.Collections.IEnumerable, class System.Collections.IList" />
   <TypeSignature Language="DocId" Value="T:System.Diagnostics.TraceListenerCollection" />
@@ -974,7 +974,15 @@
       <Docs>
         <summary>Gets a value indicating whether access to the <see cref="T:System.Diagnostics.TraceListenerCollection" /> is synchronized (thread safe).</summary>
         <value>Always <see langword="true" />.</value>
-        <remarks>To be added.</remarks>
+        <remarks>
+          <format type="text/markdown"><![CDATA[
+
+## Remarks
+
+This member is an explicit interface member implementation. It can be used only when the <xref:System.Diagnostics.TraceListenerCollection> instance is cast to an <xref:System.Collections.ICollection> interface.
+
+          ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <Member MemberName="System.Collections.ICollection.SyncRoot">
@@ -1013,7 +1021,15 @@
       <Docs>
         <summary>Gets an object that can be used to synchronize access to the <see cref="T:System.Diagnostics.TraceListenerCollection" />.</summary>
         <value>The current <see cref="T:System.Diagnostics.TraceListenerCollection" /> object.</value>
-        <remarks>To be added.</remarks>
+        <remarks>
+          <format type="text/markdown"><![CDATA[
+
+## Remarks
+
+This member is an explicit interface member implementation. It can be used only when the <xref:System.Diagnostics.TraceListenerCollection> instance is cast to an <xref:System.Collections.ICollection> interface.
+
+          ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <Member MemberName="System.Collections.IList.Add">
@@ -1266,7 +1282,15 @@
       <Docs>
         <summary>Gets a value indicating whether the <see cref="T:System.Diagnostics.TraceListenerCollection" /> has a fixed size.</summary>
         <value>Always <see langword="false" />.</value>
-        <remarks>To be added.</remarks>
+        <remarks>
+          <format type="text/markdown"><![CDATA[
+
+## Remarks
+
+This member is an explicit interface member implementation. It can be used only when the <xref:System.Diagnostics.TraceListenerCollection> instance is cast to an <xref:System.Collections.IList> interface.
+
+          ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <Member MemberName="System.Collections.IList.IsReadOnly">
@@ -1305,7 +1329,15 @@
       <Docs>
         <summary>Gets a value indicating whether the <see cref="T:System.Diagnostics.TraceListenerCollection" /> is read-only.</summary>
         <value>Always <see langword="false" />.</value>
-        <remarks>To be added.</remarks>
+        <remarks>
+          <format type="text/markdown"><![CDATA[
+
+## Remarks
+
+This member is an explicit interface member implementation. It can be used only when the <xref:System.Diagnostics.TraceListenerCollection> instance is cast to an <xref:System.Collections.IList> interface.
+
+          ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <Member MemberName="System.Collections.IList.Item">