The error "Session WindowsUpdateTraceLog failed to start with the following error 0xc0000035" indicates a Windows scheduled task or service (related to Windows Update tracing) could not start because an object with the same name already exists (STATUS_OBJECT_NAME_COLLISION). This typically points to a corrupted or duplicate trace session, leftover ETW (Event Tracing for Windows) registration, or conflicting tracing state.
Back up your registry before making manual changes. Kernel-EventTracing - Microsoft Q&A Kernel-EventTracing - Microsoft Q&A If the trace definition
If the trace definition is corrupted, you may need to reset the auto-logging registry keys. Look under the CPU or Disk tabs for
Navigate to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\WMI\Autologger\WindowsUpdateTracelog In the right-hand pane, look for a DWORD value named . Kernel-EventTracing - Microsoft Q&A If the trace definition
Open a Command Prompt as Administrator and type perfmon /res . Look under the CPU or Disk tabs for any "WindowsUpdate" processes that are hung and end them manually [5].
"Session 'WindowsUpdateTraceLog' failed to start with the following error: 0xc0000035. Repack."