A: The portable executable is 32-bit but runs flawlessly on 64-bit Windows.

Last updated: 2026

★★★★☆ (4.5/5) Highly recommended for HDD maintenance on the go. Download Link (Official): Visit the official Auslogics website → Products → Disk Defrag Free → Download Portable Version. Always verify the digital signature before running.

A: Absolutely. Just plug in the external drive, select it in the drive list, and run defrag.

Among these, Auslogics remains the most up-to-date and user-friendly portable option. Q: Does it work on Windows 11? A: Yes, fully compatible.