Sets NtfsMftZoneReservation = 2 (of 1-4). The Master File Table holds one record per file; on volumes with very large file counts (game libraries, dev trees, node_modules) the MFT can fragment as it grows, slowing directory enumeration. Reserving a larger contiguous MFT zone up front keeps it defragmented. Value 2 is a balanced choice; only meaningful on volumes with millions of files. Reboot required.
MaxTweaks applies this tweak with one click and snapshots your original setting first, so you can revert it cleanly at any time. A System Restore point is offered before batch changes, and every tweak links to its official source.
Get MaxTweaksOfficial documentation: https://learn.microsoft.com/en-us/windows-server/administration/performance-tuning/role/file-server/