Unable to upgrade CA agent on server. Old version seems to be removed but still not able to install updated version. Install logs recorded the following detail:
Action start 11:43:06: BackupCollectionState.
MSI (s) (78:8C) [11:43:06:804]: Invoking remote custom action. DLL: C:\Windows\Installer\MSIC508.tmp, Entrypoint: BackupCollectionState
SFXCA: Extracting custom action to temporary directory: C:\Windows\Installer\MSIC508.tmp-\
SFXCA: Failed to get requested CLR info. Error code 0x80131700
SFXCA: Ensure that the proper version of the .NET Framework is installed, or that there is a matching supportedRuntime element in CustomAction.config. If you are binding to .NET 4 or greater add useLegacyV2RuntimeActivationPolicy=true to the <startup> element.
CustomAction BackupCollectionState returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)
Action ended 11:43:07: BackupCollectionState. Return value 3.