Dev Drive is a new type of storage volume in Windows 11 that is specially made for programming workloads. Instead of the typical NTFS filesystem, it uses ReFS (Resilient File System), which is a newer filesystem based on Copy-on-Write (COW) linking. Basically, if you have two copies of a file, only one copy actually exists on the disk. The other one exists only as a link to the first one. Then, when you actually write to the linked file, the original data is lazily copied into it (hence Copy-...
