Hi guys, following a fresh install of Exchange 2010 SP2 on a server 2008R2 SP1 machine that hadn't been activated, the following error message was generated: Now, as any good troubleshooter would do, as no users had been created in AD, and this is the only server, a format was done and the installation was done with Exchange 2010 SP1, and to my surprise the same error message was generated. What on earth is going on here? I disabled software RAID the second time around, but still no luck. The specifications are as follows: CPU: Core2 Quad 3.2GHz RAM: 4GB HDD: 1TB x 2 (Windows RAID level 1) OS: Server 2008R2 Enterprise

Try starting the service manually and then rerunning setup.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

It turns out that IPv6 needs to be enabled for Exchange 2010 to install