Currently it can happen that the installation of Avira in the latest version fails relatively fast. The error message in the ACMP Job Monitor is "Installation failed 92: Unknown Avira exit code".
This is due to a missing Windows update. Instructions on how to install the update and how to proceed can be found here in the Avira Knowledgebase:
https://www.avira.com/en/support-for-ho ... /kbid/1961