If there are both ShadowProtect and Acronis Backup & Recovery 10 Agent for Windows installed on the same machine and you back up with VSS enabled, the incremental and differential backups will be of the same size as the full ones
Differential
When booted from WinPE-based Acronis Bootable Media Acronis Backup & Recovery 10 always creates full backup archive instead of incremental or differential
Trying to append an incremental or differential backup in Windows/Linux to the one created from Acronis Bootable Media will produce a full backup. The same is true for a vice versa operation
By deleting the ".meta" folder you remove the meta information about the backup
Automatic consolidation creates a new archive with the data from the original ones and deletes the older incremental or differential backups
Acronis True Image Echo has the capability to consolidate backup files (create a consistent copy of archive while deleting selected backups)
How to consolidate backups manually and how to set up automatic consolidation
This is a known limitation
This has been fixed
Keep a copy of your backup archive in the virtual machine format ready for instant recovery
In what way full, differential and incremental backups differ from each other