It's good practice to always do a clean install of your display drivers with every update. It's the reason why some users prefer to disable automatic driver updates. It has been an issue with all sorts of other drivers for quite some time. Windows shouldn't be updating a driver of any kind if there's a current installation in progress. However, you can argue that it's a Windows bug, not an AMD bug. Judging from AMD's statement, the software has a flaw that appears to conflict with Windows Update.

We are committed to resolve issues as quickly as possible and strongly encourage users to submit issues with AMD Software: Adrenalin Edition via the Bug Report Tool,' one AMD spokesperson told PCWorld. We recommend users ensure all system updates are applied or paused before installing the driver, and that the 'Factory Reset' option is unchecked during the AMD driver installation process. 'We have reproduced an issue that can occur in an extremely small number of instances if a PC update occurs during the installation of AMD Software: Adrenalin Edition, and we are actively investigating.

Update amd radeon driver