(Note: if you do not have an extra SATA port but you do have a CD/DVD drive, you can simply unplug the SATA data/power cables from the CD/DVD drive and plug them into your primary OS drive to perform the update.) Plug the primary OS drive into these cables.
The primary OS drive can be unplugged from the SAS/RAID bay and plugged into one of the two SATA ports. The SATA ports are not part of the SAS/RAID controller. My motherboard also contains two SATA headers: SATA_0 and SATA_1. If your system is setup with the "Non-Raid" configuration, please read on. My system was not using a RAID array, both of my hard drives were configured as "Non-Raid". SAS_0 is used to control the 4 built-in hard drive bays in the computer case. My motherboard contains two SAS headers: SAS_0 and SAS_1. If your motherboard has a SATA port, please read on. This method simply bypasses the RAID Controller on the motherboard.
#INTEL SATA RAID CONTROLLER DRIVER WINDOWS 10 UPDATE#
I have found a workaround that allows Windows 10 Update to work on motherboards with an Intel C600 Chipset SAS RAID Controller. Solution For Windows 10 Update | Intel C600 Chipset SAS Raid Incompatibility