Microsoft has been developing a new file system called ReFS (Resilient File System) to eventually replace NTFS. Users can boot Windows 11 from an ReFS drive, but the setup process is complex and requires formatting the drive using the Command Prompt. After installation, Windows 11 operates normally on ReFS, offering advantages in data resiliency and durability, especially for virtual hard disks and Storage Spaces. However, performance tests show that ReFS is slower than NTFS across various metrics, indicating it may not provide speed enhancements for general use. ReFS is seen as a promising alternative to NTFS, with potential future improvements in performance, particularly for specialized workloads.