Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
Mount the Windows File System
When you dual boot your machine with Linux (e.g., Ubuntu) and Windows, the Windows disk/partition might not be mounted automatically. In that case, you can find out which device correspond to the Windows filesystem and mount it manually.
ls /dev/sd*
ls /dev/vd*
ls /dev/nvme*
In Ubuntu, you can open the "Disks" app, which list all disks plugged into the machine.