[HELP] Install Ubuntu Dual Boot switch RAID On to AHCI

I didn't find an answer while searching so I post here. I have a Dell XPS 9350 and I want to install Ubuntu in dual boot along Windows 10. I have a M.2 PCIe NVMe Samsung SSD and on Dell website it is written that I need to change the option "RAID On" to AHCI.

When I try to do that, a warning message appears :

SATA Operation is being changed ! Attention ! Changing this settings may prevent your operating system from booting or require a reinstall. Attention ! The E-Module and other eSATA devices only function in AHCI or RAID On mode.

So my question was : Does changing RAID On to AHCI will wipe my windows hard drive and should I make a back up before on a HDD, or nothing will be erased ?

Thank you very much for your help.