
The newest insider builds of Windows 11 are allowing users to create and clean install onto freshly formatted NTFS (Default) or ReFS partitions. Windows Insider sleuth PhantomOfEarth highlighted this new option, which seems to have come along with Build 27823. The arrival of ReFS, which stands for Resilient File System, should be beneficial in several ways, as it can unlock faster performance, improve data integrity, and boost partition handling up to 35 petabytes. However, it has some drawbacks compared to the old established NTFS, and currently can't be used for bootable or removable media, for example.
Build 27823 adds a menu for formatting/partitioning unallocated disks with Flexible Storage to Windows Setup pic.twitter.com/apoCikWpwtMarch 26, 2025