Support Center OneTrace (Preview)

Starting in version 1906, OneTrace is a new log viewer with Support Center. It works similarly to CMTrace, with the following improvements:

  • A tabbed view
  • Dockable windows
  • Improved search capabilities
  • Ability to enable filters without leaving the log view
  • Scrollbar hints to quickly identify clusters of errors
  • Fast log opening for large files

Screenshot of OneTrace log viewer

OneTrace works with many types of log files, such as:

  • Configuration Manager client logs
  • Configuration Manager server logs
  • Status messages
  • Windows Update ETW log file on Windows 10
  • Windows Update log file on Windows 7 & Windows 8.1


  • .NET Framework version 4.6 or later


OneTrace installs with Support Center. Find the Support Center installer on the site server at the following path: cd.latest\SMSSETUP\Tools\SupportCenter\SupportCenterInstaller.msi.

By default, the OneTrace application is installed at C:\Program Files (x86)\Configuration Manager Support Center\CMPowerLogViewer.exe.


Support Center and OneTrace use Windows Presentation Foundation (WPF). This component isn't available in Windows PE. Continue to use CMTrace in boot images with task sequence deployments.

Log groups

Starting in version 2002, OneTrace supports customizable log groups, similar to the feature in Support Center. Log groups allow you to open all log files for a single scenario. OneTrace currently includes groups for the following scenarios:

  • Application management
  • Compliance settings (also referred to as Desired Configuration Management)
  • Software updates

To show log groups, go to the View menu, and select Log groups.

Screenshot of OneTrace log group for application management

Customize log groups

You can customize these groups by modifying the configuration XML, which by default is in the following path: C:\Program Files (x86)\Configuration Manager Support Center\LogGroups.xml.

The following example is one portion of the default configuration file:

  <LogGroup Name="Desired Configuration Management" GroupType="1" GroupFilePath="">

The GroupType property accepts the following values:

  • 0: Unknown or other
  • 1: Configuration Manager client logs
  • 2: Configuration Manager server logs

The GroupFilePath property can include an explicit path for the log files. If it's blank, OneTrace relies upon the registry configuration for the group type. For example, if you set GroupType=1, by default OneTrace will automatically look in C:\Windows\CCM\Logs for the logs in the group. In this example, you don't need to specify GroupFilePath.

See also