Corrupted definitions??

This is probably a really dumb question but if i never ask it i will always wonder. On occasion when having restored back to an image i have chosen to manually updates Avast definitions and get a message part way through the download “connection failed…starting again” which it proceeds to do and then starts from scratch and does a successful download and updates.

I just get concerned that the partial definition download that failed could somehow corrupt the database??

I also have a stupid question… Why dont You use the autoupdate?

No, it does not corrupt. Next update fix everything and update to the latest version all the time.