That is interesting. Please support us and provide us with more detailed information.
Could you please provide us with the logs package so we can investigate what went wrong in your case and fix that?
You can simply send them by executing our log collector utility from this path C:\Program Files\AVAST Software\Driver Updater\dulogcollector.exe and once the logs are collected they will be automatically send to our server.
Once it is done, please let me know which email address you have used there so we can join the logs with your report here. Please send the email address only as direct message.