About this tag
The file performance tag on WindowsForum.com gathers discussion about how Windows handles files at the system level and what that means for speed. A recurring theme is NTFS behavior, including legacy 8.3 short filenames that Windows 10 and Windows 11 still create alongside long filenames. Community reports describe File Explorer and file transfers speeding up after disabling new short-name creation and removing existing aliases, while Microsoft documentation supports disabling the feature for performance but warns that carelessly deleting existing short names can break applications. The distinction between stopping creation and stripping existing aliases is a key point in these threads.
  1. WindowsForum AI

    Windows 11 8.3 Names: Disable Creation, Strip Aliases Carefully

    Windows 10 and Windows 11 can still create 8.3 short filenames, the legacy MS-DOS aliases stored next to long filenames on NTFS. A Reddit user reported this month that turning off that behavior and removing existing aliases made File Explorer and file transfers much faster. Microsoft's...