I tryied to backup the entire disk that hosts my C: drive to the root of my E: drive. C: and E: are different physical disks, yet backup throws an error that the indicates the source and the destination are the same.
26.06.2014 11:58:13 Cannot perform backup. The backup file cannot be saved on the partition/disk that is being backed up. 26.06.2014 11:58:13 Backup failed with code 189 (Source same as destination).
I found out that my E: drive had insufficient space. When I redirected the backup to a drive with more space, it ran successfully.
OS: Windows 8.1 Enterprise x64
Backup & Security Software Installed: Avira Free Antivirus 14.0.5.444, Comodo Backup 4.3.8.0