Windows Backup and Restore does not handle hardware I/O errors in an elegant manner. It displays a cryptic error message and aborts the process. That is a potential pitfall, because hard drives develop I/O errors over time. To my knowledge, all media are vulnerable to I/O errors. The only variance involves the degree of vulnerability.
In the future, I will use Windows Backup only for system-related files and directories. Media directories should be backed up separately using Windows Explorer. This will minimize the size of the Windows backup image while increasing the speed of restoration, but most importantly, it will minimize the potential of an I/O error stopping the restoration.
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