If you try to update SSM agent on an older instance with AWSConfig installed, SSM Agent will refuse to update, reporting issues caused by AWSConfig
On Windows, config file can be found in C:\Program Files\Amazon\EC2Config\settings\config.xml Technically the installer WILL do the backup. But I prefer doing my own backups :)
If you are updating AWSConfig from version 3.x to 4.x you are probably ok, but if you are updating from 2.2.12 or earlier, please refer to the AWS documentation as there are issues with backwards compatibility which you have to go around by updating .NET and two stage installation
Download and unzip
If you see WMI error, that might not be a big problem (I’ve seen it all over the place), but important part is the report of pushing out reports.
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