Here is the battle plan. Try these in order, as the first solution resolves 80% of cases.
Follow these steps in order. The first few are quick checks; later steps involve deeper system modifications.
Solutions to Error 0xe00086cc
If the troubleshooting steps above do not resolve the issue, here are some potential solutions:
Conclusion
The "helpful feature" implied by this error is the Synchronization process between the Backup Exec server and the Virtual Machine Manager (VMware vCenter or Hyper-V host).
Check Network Connectivity:
Ensure Resource Availability:
Review Backup Job Configuration:
Logs and Detailed Error Messages:
Update and Patch Backup Exec:
If the error persists, gather logs for Veritas support:
A real‑world example:
A backup administrator replaced a failed tape drive, but Windows assigned a new SCSI address. Backup Exec still pointed to the old device path. When the backup job ran, BE returned 0xe00086cc because the “old” tape drive no longer existed.
Fix: Rescanned devices, removed the missing drive, reconfigured the backup job to use the new drive → error cleared.
Error code 0xe00086cc is a VSS (Volume Shadow Copy Service) related failure. The full error message often reads:
"VSS reported an error. The I/O writes have failed. Check the Windows Event Viewer for more details. Access is denied."
In technical terms, the error translates to VSS_E_ACCESS_DENIED (0x8004230C). This indicates that Backup Exec’s AOFO (Advanced Open File Option) or the VSS infrastructure was unable to read one or more volumes on the target machine because the process lacked the necessary permissions.


