I had probably the worst contact I ever had with Dell support about this. I solved my problem, but no thanks to Dell support. Without going into details about all the things that were bad, here are the answers:
I have a Precision 7560 with Windows 11. I want to install a second Windows 11, creating a dual-boot setup with two installations of Windows 11. (The main reason for this is to have another Windows installation that I can use to troubleshoot configuration problems without destroying my current installation or otherwise make it unusable. If I then get everything working on that second installation, the idea is to eventually make it the main one and delete the first installation.) My first question is whether I can use the Dell OS Recovery Tool to create a second installation, ideally already with the correct drivers. Is this possible? Does it work similarly to the normal Windows setup, that allows me to select the partition into which to install Windows? (I already have created a partition on my disk for a second installation.) In case that doesn't work, I guess I could use a USB stick with the Windows 11 setup program. It needs a disk driver to see my (NVMe) disks. What driver(s) would I use, and how do I get them in a form that the Windows 11 setup program can use? Thanks!
Install a second Windows 11