"Acronis VSS Provider is not installed

Microsoft Software Shadow Copy provider will be used instead."
Source
Currently there is a problem within our software that brings up this prompt. Most likely there is a problem with the user permissions from which the program is being installed. I would recommend the following article to check the proper permissions to work with ABR10.
As a workaround, you can continue using Microsoft VSS and your backup integrity should not be affected. I will update this thread as soon as I have additional information from our Development team.