PowerShell Missing About_ Help Topics after Running Update-Help

PoweshellConsoleOutput.txt

PS C:\Windows\system32> update-help
PS C:\Windows\system32>
PS C:\Windows\system32> get-help about_

Name                              Category  Module                    Synopsis
----                              --------  ------                    --------
about_WS-Management_Cmdlets       HelpFile                            Provides an overview of Web Services for Management (WS-Management) as
about_CimSession                  HelpFile                            Describes a CimSession object and the difference between CIM sessions and
about_ActivityCommonParameters    HelpFile                            Describes the parameters that Windows PowerShell
about_Checkpoint-Workflow         HelpFile                            Describes the Checkpoint-Workflow activity, which
about_Foreach-Parallel            HelpFile                            Describes the ForEach -Parallel language construct in
about_InlineScript                HelpFile                            Describes the InlineScript activity, which runs Windows
about_Parallel                    HelpFile                            Describes the Parallel keyword, which runs the
about_Sequence                    HelpFile                            Describes the Sequence keyword, which runs selected
about_Suspend-Workflow            HelpFile                            Describes the Suspend-Workflow activity, which suspends
about_WorkflowCommonParameters    HelpFile                            This topic describes the parameters that are valid on all Windows
about_Workflows                   HelpFile                            Provides a brief introduction to the Windows


PS C:\Windows\system32> get-help about_Modules

Name                              Category  Module                    Synopsis
----                              --------  ------                    --------
Get-Command                       Cmdlet    Microsoft.PowerShell.Core Gets all commands.
Get-Module                        Cmdlet    Microsoft.PowerShell.Core Gets the modules that have been imported or that can be imported into the current session.
Import-Module                     Cmdlet    Microsoft.PowerShell.Core Adds modules to the current session.
Get-EventSubscriber               Cmdlet    Microsoft.PowerShell.U... Gets the event subscribers in the current session.
Import-PSSession                  Cmdlet    Microsoft.PowerShell.U... Imports commands from another session into the current session.
Register-ObjectEvent              Cmdlet    Microsoft.PowerShell.U... Subscribes to the events that are generated by a Microsoft .NET Framework object.
Remove-TypeData                   Cmdlet    Microsoft.PowerShell.U... Deletes extended types from the current session.
default                           HelpFile                            SHORT DESCRIPTION


PS C:\Windows\system32>