I use Acronis. Backups are barely accessible, by using the JAWS OCR Window
command.

Restoring from backup is entirely different and not accessible, as JAWS is
not running for a full restore, obviously. Restoring individual files,
however, is just as accessible as the backup process.

Because you must use OCR Window, this software is quite tricky. I don't
recommend it for neophytes. You have to play with it quite a bit to
successfully fire off a backup.
-Paul