TweakVI

TweakVI is an optimization tool for Windows Vista that allows you to power up its performnce and modify some configuration settings to make it suit your needs.

All those power ups are given in different sections that cover different aspects of Windows Vista: system, appearance, internet options, filesystem options and error notifications.

The section that will make more changes and that will power up the performance of your machine is "system", which contains modifications for HD, memory, storage and reading devices.

Although in this free version, we can find many modifications, there exist a pay version with more options.

In short, if you want to improve your PC, you can try TweakVI, you won't be disappointed.