What is "Realtek HA R2.7 for win7"?

You don't need the Intel Chipset driver for Windows Vista or newer.

1) This driver is not RAID-specific. It is an AHCI driver. Install it after installing Windows 7. Be sure your SATA Operation Mode is set to "AHCI" before installing Windows 7. This isn't the stone age anymore, you don't need no floppy.

2) You don't need to install the utility, but there is a device that will require the driver from the µGuru ZIP file, so be sure to install it via Device Manager.