Agent installation fails on prerequisites installation with error: "Installation of prereq CRT 2015 (x64) ENU failed with error code: (1638) Another version of this product is already installed." The issue may be with Microsoft Redistributable 2017 (x64) overwriting Microsoft Redistributable 2015 (x64).
Checking Control Panel, Programs and Features - there's no VC runtime 2015 installed in the list.
To workaround the defect, please do the following:
- open Control Panel, Programs and Features
- uninstall Visual C Redistributable 2017
- install agent software with all pre-requisites
- install VC 2017 back