Windows Tweaker is a comprehensive utility that provides hundreds of registry settings to improve appearance and performance, increasing security by preventing others from changing your settings. Administrating all user accounts on your computer has never been easier!

The range of features is extensive, such as the ability to change Windows XP's system performance. You can keep the core system in memory and not paged to disk, increasing performance, but this is advisable only if you have 512MB RAM or more. You can optimize CPU and memory usage for programs, system cache, or background services to further improve performance.
For administrators who want to make changes to all users on their machine at once, without having to log in separately for each account, Tweaking Toolbox XP has you covered. Simply select which user profile you want to modify, and the utility will adjust the settings for you.
The latest version, 2.1, includes even more useful features. You can now import/export settings, making configuration across multiple systems a breeze. Additionally, you can configure Windows XP SP2's Security Center and firewall settings for even greater security.
In conclusion, Tweaking Toolbox XP is an essential tool for any serious Windows user who wants to get the most out of their system. With its wide range of features and ease of use, it's no wonder that it's considered one of the best Windows tweaker utilities available.
Version 2.1: Import / Export Tweaking Toolbox XP Settings.