XPS13 Win10 dual boot "raid" issue (solved)

New XPS13 with Win10 factory install

I've shrunk the windows partition,

Changed boot sequence to Ubuntu/Windows, Left boot list options at "UEFI" Turned off "fast start", Have Enable UEFI Network stack checked.

Had to change SATA Operation from RAID-On to AHCI to have the linux installer see my partition.

Successfully installed LinuxMint 18 and grub menu. 

However...   Linux will only boot if I go into bios and change SATA operation to AHCI.  Windows will only boot if the SATA operation is set to RAID-on

Any help and/or workarounds is greatly appreciated.

(solved)  Here's what worked for me to change from RAID to AHCI:  http://triplescomputers.com/blog/uncategorized/solution-switch-windows-10-from-raidide-to-ahci-operation/