Anvi Ultimate Defrag is a straightforward tool which uses several different techniques to optimise your hard drive and so improve system performance.

The program is surprisingly easy to use. Choose the drives you'd like to process, click Start, and Anvi Ultimate Defrag goes to work, repairing any file system problems, cleaning up junk files, defragmenting and finally optimizing your drive.

If you prefer a more hands on approach, the Settings dialog allows you to fine-tine exactly what the program does. You're able to run defrags at boot time or on a schedule. You can choose how to treat SSDs and external drives, and whether notebooks should run defrags when the system is running on batteries.

Perhaps more importantly, you can also configure your "hot zone", a slightly confusing name which apparently just refers to the way your PC is used. Tell Anvi Ultimate Defrag that your system is mainly for browsing, work or gaming, say, and Anvisoft claims the program will adjust its defrag mode accordingly to deliver even better results.

Verdict

Anvi Ultimate Defrag is effective, simple to operate yet also offers more configuration options than many similar tools. The ad at the bottom of the window is a little distracting, but the company has to sponsor their free tools somehow, and once Ultimate Defrag is set up you won't be looking at it much anyway.