Hello Michael,
I have not found the solution, even install an earlier version of the DNN to see if it could be the current version, but I get the same error.
These were my installation steps:
1- Unlock the zip and extract it in the project folder
2- I added a new site in the ISS (version 7)
2.1- I chose the name of the site
2.2- I chose the port where it will run
2.3- I did not choose a domain name
2.4- In the "application group" pass the site to version 4.0
3- I added the user permissions in the project folder and gave total control to the assigned user
4- In SQLServer 2008 create a new empty database
5- I ran my localhost and I was able to start the installation without problems
5.1- Choose username and password, email
5.2- I configured the database with its name, username and password and it will be executed as master
6- Say start to the installation. In this process, I verified that the tables were added to my BD and executed effectively.
7- Finished the installation and accessed the site from the "view site" button and ready
This were all the steps that I have executed before arriving at the error that I am commenting on, I remain attentive to your comments