DTweak is a complex FREE tuning software for Windows Vista.

DTweak allow you to tune, optimize and increase the speed of your Windows Vista system without manually modifying registers or ini files. DTweak has a lot of tweaks, and even more are plannet.

The most important of them are:
- Disk: Intelligent Disk Cleaner.
- Registry: Backup, Restore and Intelligent Cleaner.
- Security: Firewall, IE, Wnidows Update and other thweaks.
- UAC: User Account Control tweaks
- Mail Tweaks: Outlook and Windows Mail
- Optimizations: StartUp, Cache and Visual Effects tweaks
- and many other important tweaks

DTweak homepage

Download DTweak 1.3 here