When attempting to run a Full Backup Server, there are Repeated Errors, within on the server & eventually the server will freeze hard (crash) & the only option is to reset/reboot the Server. Although this "may" occur durring any backup, this predominantly will occur when a Full Backup is being run on the server, more often than not though... incrementals will work fine and may not see this problem. Also, predominantly will occur/seen on Window 2003 machines
Event ID: 333 - An I/O operation initiated by the Registry failed unrecoverably. The Registry could not read in, or write out, or flush, one of the files that contain the system's image of the Registry
Event ID:2020 - The servr was unable to allocate from the system paged pool because the pool was empty
Event ID 519 - "from source mfehidk cannot be found"
As the below link seems to show, McAfee Antivirus Enterprise 8.8, seems to have issues more often then not, when running on a Windows 2003 Server... and not so much when running on Windows XP, Windows 7, Windows Server 2008, Windows Server 2008R2.
Link showing the issues: https://community.mcafee.com/thread/38010?start=50&tstart=0
1. disable McAfee AV all together
2. uninstall McAfee AV and use a different AV
3. revert back to 8.7.0... but "do not" install Patch 5
4. "Possible" other fix - https://kc.mcafee.com/corporate/index?page=content&id=KB73354 (as this is not our AV software, hence why I state "possible fix" and I offer no guarantees!)