WSS 3.0 0x8007005 Installation Error

Scenario:

Working on a client site recently, I have installed Windows Sharepoint Services 3.0 in a stand-alone server mode. Everything worked fine until I've opened Central Administration Site and realized that the person who gave me access to the server logged me on as a local server administrator.

Since the server was member of a company domain, I decided to reinstall WSS in order to avoid future problems (actually I remember that I read somewhere that it is not a good practice doing WSS installation as a local server Administrator).

So, I uninstalled WSS 3.0, manually deleted Sharepoint Central Administration Site web site (have no idea why it wasn't deleted automatically), restarted server, logged on as a domain user which was member of local Administrators group, and started setup again.

Everything worked fine, until step 8 of 10 of "Sharepoint Products and Technologies Wizard"....In a blink of an eye I saw the status message "Error creating Sample Site" or something similar, and then window with this message appeared:

HRESULT: 0x80070005 E_ACCESSDENIED

Reason:

I had no time and will to research further "why and where"....but even after complete remove and reinstall, WSS 3.0 was still keeping information that the Primary administrator of a first sample site collection is SERVER\Administrator, from the first installation, instead of the DOMAIN\WSSadmin who did the most recent installation.

Solution:

A lot of Googling pointed me to problem with WMI DCOM configuration and lack of permission for the local ASPNET account....not in my case...;)

Since the Central Administration Site was fully functional, I've accessed Application Management Section, removed SERVER\Administrator from Primary admin, added domain user account DOMAIN\WSSadmin as the Primary admin and re-run Sharepoint Technologies Wizard.

This time everything worked fine.

Conclusions/Advices:

Create domain user account for WSS admin, make it member of server's local Administrators group and use it for WSS installation and initial administration.