Windows Hard Link Repack — Authentic & Updated

Workaround: Use directory junctions or symlinks with mklink /D or mklink /J . Hard links cannot span drives (C:\ to D:). Each volume maintains its own file reference table. For cross-volume needs, use symbolic links. ❌ The Deletion Trap This is the most common hard link mistake:

echo Hello > original.txt mklink /H link.txt original.txt type link.txt # Output: Hello echo World >> original.txt type link.txt # Output: Hello World /H is the crucial flag—without it, mklink creates a symbolic link by default. New-Item -ItemType HardLink -Path "C:\links\link.txt" -Target "C:\data\original.txt" Or with the shorter alias:

You can view the link count using:

fsutil hardlink list "file.txt" Or with PowerShell:

A copy is two independent files. Change one, the other stays old. A hard link is one file with two names. This is where most people get tripped up. windows hard link

A symlink is like a sticky note that says "go look in C:\Other\file.txt" . If you move or delete file.txt , the symlink breaks.

copy file.txt file_backup.txt # Wrong: uses 2x space mklink /H file_backup.txt file.txt # Right: zero extra space This is not a true snapshot. Changes to file.txt will appear in file_backup.txt because they're the same data. Use this only when you want simultaneous updates across paths, not historical versions. 3. Compatibility Layers for Legacy Software Some old software expects configuration files in hardcoded paths. Instead of copying (and then desyncing), use hard links: Workaround: Use directory junctions or symlinks with mklink

fsutil hardlink list "link.txt" Or in PowerShell: