Hello and welcome!
Step#1 - Capture Process Monitor Trace
1. Download and run
Process Monitor. Leave this running while you perform the next steps.
2.
Try updating the system just like you have in the past.
3.
Stop Process Monitor
as soon as it fails. You can simply do this by clicking the
magnifying glass on the toolbar as shown below.
4. Select the
File menu...
Save... and save the file to your
desktop. This is likely the default location. The name (unless changed) will be
LogFile.PML. This is fine.
5. Zip up and provide the link to the
LogFile.PML file as well as your
CBS.log Examples of services to upload to are
Dropbox or
OneDrive or
SendSpace.