Hello, I'm getting 'service user account 'postgres' could not be created' when using the postgresql-8.4.2-1 one-click installer (i also get the same error with a new version of postgresql 8.4.8-1)
So i know in the past (version 8.3.x) there were problems with Windows Server 2008 R2 running Active Directory and postgresql around this same error. I'm running into exactly the same errors as described here: http://forums.enterprisedb.com/posts/list/1516.page
After I get the error i cancel out of the installation, make sure there's no postgresql install, make sure there's no postgresql service running, blow away postgres user, make sure there is nothing in the registry and reboot.
I try to reinstall again and run into the same problem.
