Everything is detailed in the R10 service manual: R10 service manual  What you are looking for is under Table 4. System setup options—Boot menu   If you have 2 bootable drives, both will be listed separately as UEFI boot partition in that drop down list. Select the NVMe drive and it will boot from that drive moving forward. Boot drive when using UEFI is always designated drive letter "C", regardless of where it resides or what drive it is on. Your other drive will then be "D" and so on. You can change any drive letter using Windows Disk Management, except the "C" drive.
Hello everyone, I have recently cloned my HDD drive on my Alienware Aurora Ryzen Edition R10 to an NVMe drive placed on the motherboard of the PC.  I used the Alienware cloning utility within Support Assist (which you get to by pressing F12 when booting).  All seems to have gone perfectly. At this point, my objective is to get the NVMe drive to be recognized and booted to rather than the HDD drive.  Also, my cloned drive (the NVMe drive) is appearing as the "D" drive currently.  When I get the computer to boot to the NVMe drive I wish that drive to be recognized as the "C" drive. Beyond that, I do not wish to remove my current HDD drive.  I want it to become the "D" drive and be a completely new volume that is formatted and blank. I am not aware of a way to do this within whatever programs are provided with the Alienware.  If there is something that is included within the Alienware setup or support assist that allows me to do it, I would prefer to do it that way.  If on the other hand there is a process or method I need to follow in order to make all of these things happen, I'f be glad to know that instead. Any help you can provide would be greatly appreciated. Thank you in advance!  
Aurora R10, cloned HDD to NVMe, boot from it?