Thank you for submitting this support query. To isolate the issue, please try the following:
1. Delete the existing Backup to Disk folder from Backup Exec and Re-configure it to point to the same location. Run the backup job again and observe the results.
2. For test purposes, please create a new backup to disk folders in another location and run the backups.
3. Run a check on the hard drive for bad sectors or errors and Defragment the disk.
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