Hello, sorry for the late reply as I don’t use Medium much these days.

First of all, you need to check that does your system support ```AHCI``` to use or not. It may be the case. Secondly, you can try to install Ubuntu while skipping this step i.e. try installing windows and Ubuntu in RAID mode only. I have seen that it works fine on many devices. Also, in case if you want to contact me again do prefer to mail me at `rajneeshsharma338@gmail.com` Thanks