Salut,
je vous propose de découvrir ce clone gratuit de Winutilities. Il est apparemment édité par la même société que son homologue payant.

Quelques copies d'écrans
Langue : EN (mais ils cherchent des traducteurs bénévoles sur leur forum)
Compatibilité : Windows 7, 2000, XP, Vista, 32/64bit
Licence : Freeware
Description de l'auteur : "Perfect Utilities is a freeware PC optimization tool. It combines more than 20 tools in one bundle to clean, optimize and speed up your system performance, It offers an attractive and easy to use interface that organizes all tasks into categories and provides graphical statistics whenever possible. The tools include Junk File Cleaner, Registry Cleaner, Disk Cleaner, Memory Optimizer, System Information, Registry Backup Tool, File Encryption Tool, Safe Uninstaller, Duplicate File Finder, File Shredder, File Recovery Tool, Disk Defragment Tool and much more. Perfect Utilities also includes an Internet Tracks Eraser with Cookie Manager and Secure Deletion. Overall, a great bundle that offers a wide range of system tools with extra benefits which are not easy to find. Perfect Utilities allows Windows to run faster, more efficiently and gives you more hard disk space. The best part is that it's Auto-Update supported, Fast, Security and Free!"

Avantages : suite logicielle très complète
Inconvénients : pas (encore) en Français - Non portable nativement
Test antivirus : 0/37 chez VirSCAN.org
Le site : putils.com
Page de téléchargement : ici