My VMWare environment is running VSphere 5.1. Since employing this version along with the current version of Virtual Data Protection, my exchange server is occasionally rebooting. The system even log is reporting this as an improper shutdown so I don't think it relates to HA etc. Also, this isn't occurring to any of my other virtual machines running on the host. The improper shutdown is occurring during the VDP backup and backup itself does complete successfully. This is now happening 3 times a week so it's consistent but not a daily issue. I have reinstalled the VMTools but this had no impact. The Windows event viewer isn't providing any errors prior to the system shutdown taking place aside from informing me that the system was shutdown improperly. This far my Googling hasn't provided an leads. Anyone seeing similar issues or have any recommendations? The server in question is a Windows Server 2008 R2 with Exchange 2010 installed. Never any issues with this machine until the new VDP was set in place.