Sets FileSystem\NtfsDisable8dot3NameCreation = 1 so NTFS no longer generates MS-DOS-style 8.3 short names for every file. Removes a small per-file write cost on folders with many files. Existing short names are unaffected; a rare 16-bit/legacy installer could care. 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/windows-commands/fsutil-8dot3name