I currently have a case open about this (00996090). I was told the following. Neither of these worked and I am still waiting to hear back on what else can be done to resolve this. I LIKE ME EMAILS GREEN!!
"I`d like you to update your Veaam EndPoint Backup version. You can download it here: http://www.veeam.com/endpoint-backup-free.html
Or at first you can remove the letter of HP_Tools disk via disk management and try the backup job once again"