Best Practice Analyser – ‘Warning’ Short file name creation should be disabled – Configuration

Disabling Short filename Creation frees up performance for other file server tasks

This will stop NTFSfrom generating the 8 char filename alias for all files (only required for very old software)

Example:

Query the current state for the setting:

fsutil 8dot3name query

To disable the function, change the following registry value & reboot the system

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem

NtfsDisable8dot3NameCreation

Set it to 1 (Default value is 2 for 2012 & up, earlier it was 0)

This is one of the many performance tuning options for file shares: Performance Tuning for NFS File Servers | Microsoft Docs

More on scanning & cleaning up already generated names: fsutil 8dot3name | Microsoft Docs