Backup may fail due to a variety of reasons. This article contains instructions on how to localize the root cause of the issue and how to troubleshoot it as well as links to other troubleshooting articles.
About backup process
Backup process can be divided into several stages:
Backing up the entire machine is the most complete way to protect your data. We recommend that you choose this option when you are not sure which data that you need to protect. When you select Entire PC as a backup type, Acronis True Image backs up all your internal hard drives in disk mode. The backup contains the operating system, installed programs, system settings, and all your personal data including your photos, music, and documents.
You are reporting a typo in the following text:
Simply click the "Send typo report" button to complete the report. You can also include a comment.