DTweak Free is a free advanced tweaker and optimizing tool especially designed for Windows Vista.

With DTweak you can
- defragment disks and registers,
- clean registry sistem,
- tune computer performance,
- optimize and increase the speed
of your Windows Vista system without manually modifying registers or ini files.

DTweak at the moment has a lot of features like Disk and Registry defragmenters, error scaners, user account control tweakers etc - for more information see Features section.
Anyway - we continue adding new features with every new release, and if you didn't see a needed feature in this release you'll see it in the next!