When I try and install SQL Server 2008 Developer Edition, it stops and says I need .NET 3.5 SP1.
Windows 7 has .NET 3.5 installed (I selected it in features) but I guess it's not SP1? (I'm running Windows 7 Ultimate RTM).
I tried installing .NET 3.5 SP1, but it just stops after I click on the .exe.
Error: .NET 3.5 installation has failed. SQLServer 2008 requires .NET Framework 3.5 to be installed.
I have already installed Visual Studio 2008. I have selected 3.5 in programs/features (I checked the main checkmark, there are 2 sub-checkboxes that I didn't select)