Tweak-7 - all the Vitamins your Windows 7 needs! Comparing Tweak-7 with other tweaking tools is simply impossible since no competitive product covers such a huge functionality: from simple registry tweaking to complex and fast registry cleaning and registry defragmentation to comprehensive system cleanup.
Tweak-7 is the premier companion to Windows 7: it gives you access to whatever you might need to keep your Windows 7 running smoothly, error free, and under your full control. System restrictions, system cleanup, system tweaking are just a few keywords describing the feature richness of Tweak-7.
Optimizing Windows 7 was never easier: Tweak-7 includes everything you need: hundreds of registry tweaks, intelligent system and registry cleaners and an auto optimizer keep your Windows 7 clean and fast.

PerfectSpeed PC Optimizer is a state-of-the-art suite of tools that provide a comprehensive solution for improving your computer's health by optimizing your drive using PerfectSpeed PC Optimizer's patented SMARTPlacement technology, SafeCleaning your computer's registry, reclaiming disk space by deleting temporary files/duplicate files, erasing traces of personal information, and tweaking Windows for faster performance and better security.

Is your PC slow? Is your privacy protected? This powerful suite of tools makes your PC faster, cleaner, and better protected — from the most trusted name in Microsoft® Certified disk defragmentation technology, PerfectDisk®.

A Click A Day to Clean, Repair, Protect & Optimize your PC! Advanced SystemCare FREE (formerly Advanced WindowsCare Personal) has a one-click approach to help protect, repair, clean, and optimize your PC. With over 35 MILLION downloads since 2006, this fantastic, award-winning, free PC repair software is a "must-have" tool for your computer. 100% safe with no adware, spyware, or viruses; a PC maintenance program that’s incredibly easy to use. Why waste money on expensive "registry cleaners" to fix your PC when Advanced SystemCare Free will repair, tune, and maintain it for you – for free!
The World’s Top System Utility for Superior PC Health! Protect and speed up your computer with Advanced SystemCare PRO (formerly Advanced WindowsCare Professional)! It provides an always-on, automated, all-in-one PC Healthcare Service with anti-spyware, privacy protection, performance tune-ups, and system cleaning capabilities.

ATI Tray Tools is a Full Featured Radeon Tweaker that can be found in the windows tray which then allows instant access to options and settings. This tool is developed by Ray Adams.

You can change anisotropic filtering + antialiasing levels in Direct3D and OpenGL, adjust image quality, turn on/off special driver features, or simply just fool around with clock settings (core and memory speeds). It uses minimal system resources and isn't intrusive. Quite handy and quite a small download. Just click the executable and you are good to go.
Supported OS: Windows 2000, Windows XP (including 64 bit version), Windows 2003 (including 64 bit version).

GD WinTools.net Ultimate Edition - is a suite of tools for increasing MS Windows operating system performance. WinTools.net cleanly removes unwanted software from disk drives and dead references from the Windows registry. WinTools.net puts you in control of the Windows start up process, memory monitoring and gives you the power to customize desktop and system settings to fit your needs. Adds more speed and stability for your connection. Ensures your privacy and keep sensitive information secure.
WinTools.net Ultimate contains tools: Clean Uninstaller, Scan Files, Scan Shortcuts, Scan Registry, Startup Manager, Tweak UI, Net Tweaker, The Privacy, Invisible Man, File Shredder...

The complete solution to optimize, tweak, clean up Windows 7! A all-in-one utility to tweak, optimize, tweak, tune up and clean up your Windows 7, it bundles more than 30 different utilities in one and help your system faster and more stable, secure and personal! Windows 7 Manager is a system utility that helps you optimize, tweak, and clean up Windows 7. It will increase your system speed, improve system security, and meet all of your expectations.
Windows 7 is the newest Operating System for home users and professionals alike. Windows 7 brings clarity to your world, so you can more safely and easily accomplish everyday tasks and instantly find what you want on your PC.
Windows 7 Manager is the powerful software tool to tweak and optimize your Windows 7, it bundles more than 30 different utilities in one and help your system faster and more stable, secure and personal!

Smart PC makes your PC faster, error-free and more efficient!
Smart PC ensures your personal privacy while surfing through the Web and protects your PC from information theft.
Smart PC supports Mozilla Firefox, Internet Explorer, Netscape and Opera web browsers.

Smart PC Professional is a comprehensive package software that provides with all the tools to fix up, clean it up and optimize your PC’s performances. By a few easy steps you can make your PC run faster, cleaner and error-free with the help of a new award-winning tool - Smart PC Professional. The software fixes stubborn errors, cleans-up space-wasting junk and debris making your PC more efficient and reliable. Smart PC Professional is different from the basic version in a greater variety of opportunities and increased capability.

• Clean your PC and make it faster
• Check and secure your PC against spyware
• Protect and secure your sensitive information
• Maintain your PC and make it error-free

Super Utilities offers 29 tools for fixing, speeding up, maintaining, and protecting your PC.
Super Utilities - Make your computer run faster, safer, with greater privacy and security. With only a few minutes of tweaking, Super Utilities will optimize the performance of your computer, corrects problems and helps you to customize your system to suit your needs.

Reveal hidden secrets of Windows 7, Vista, and XP!
As a long time Windows user you might have heard about registry. The registry is a special file in your hard disk that hold most of Windows settings data. Wish to improve your internet speed or display message at Windows logon? No problem, those tasks can easily be done by simply editing the registry value. Unfortunately registry is not a friendly place for most people. Changing a wrong value in the registry may cause an unpredictable problem to your Windows. This is why novice users should not edit registry value directly using a registry editor by them self.
In TweakNow WinSecret, we have gathered the most popular Windows 7/ Vista/ XP registry settings and provide them for you in an easy and safe user interface. All settings are divided in the following sections: 

TuneUp Utilities can make your Windows operating system faster, more comfortable and more secure with just a few mouse clicks. And all operations performed on the operating system are completely safe, because all changes are monitored by TuneUp Rescue Center and can be undone at any time. All TuneUp Utilities modules can be accessed through a common interface that is divided into six categories.
The software helps both beginners and experts to make Windows meet their needs in a way that is better, easier and safer. All important system options are explained in an easy way and can be turned on or off at the click of your mouse. TuneUp Utilities will then make the necessary changes in the registry or boot files automatically. We place a high value on system stability, so that Windows won't stop working reliably. And most changes that you make can be undone in TuneUp Rescue Center - easily and safely.

Fresh UI is a fresh solution for configuring and optimizing Windows.
Fresh UI is organized by section for easy navigation and completed with detail descriptions for easy reference. Use it to troubleshoot your Windows problem. Loaded with hundreds of useful hidden settings in Windows XP/2000/NT/ 98/95/Me, this software covers the customizing and optimizing techniques that you'll be glad to know, such as:

• Customizing Windows User Interface (UI)
• Optimizing system settings
• Optimizing hardware settings

Advanced System Optimizer is a system tweaking suite that includes more than 30 tools to improve and tweak your PC`s performance, to keep your system running smoothly, speedily, and error free. 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, memory optimizer, system information, system files backup, file encryption, safe uninstaller, duplicate file finder, windows transparency manager and much more. Advanced System Optimizer also includes a small SMTP server for direct mail sending, an Internet tracks eraser with cookie manager and secure deletion, and even a desktop sticky notes application. Overall, a great bundle that offers a wide range of system tools, as well as some extras that are not commonly found.