Go to Control Panel > Programs and Features..
Now click on View installed updates (under the Tasks heading)
Look for the SP1 Beta install .. it will be under the Microsoft Windows
group and read as 'Service Pack for Microsoft Windows.
Uninstall it.
Before running the SP1 RC1 installation, disable your anti-virus program.
When the computer reboots after installing RC1, the av will automatically
re-instate itself..
Good Luck
--
Mike Hall - MVP
http://msmvps.com/blogs/mikehall/default.aspx
"dnr" <dnr@discussions.microsoft.com> wrote in message
news:E6EB28E2-988C-49DC-86B9-151BD5BABAE1@microsoft.com...
> When I try to install SP1 I get a message that says SP1 is already
> installed.
> What is installed is the SP1 beta. How do I remove the beta to install
> the
> RTM SP1?