System Mechanic!

BleachBit deletes unnecessary files to free valuable disk space, maintain privacy, and remove junk. Rid your system of old clutter including cache, cookies, Internet history, localizations, logs, temporary files, and broken shortcuts. Designed for Linux and Windows systems, it wipes clean Adobe Reader, APT, Bash, Beagle, Chromium, Epiphany, Firefox, Flash, GIMP, Google Chrome, Google Earth, Internet Explorer, Java, KDE, OpenOffice.org, Opera, RealPlayer, Safari, Second Life viewer, Skype, VIM, XChat, Yum, and more. »

Glary Utilities offers numerous powerful and easy-to-use system tools and utilities to fix, speed up, maintain and protect your PC.

The Sysinternals Troubleshooting Utilities have been rolled up into a single Suite of tools. This file contains the individual troubleshooting tools and help files. It does not contain non-troubleshooting tools like the BSOD Screen Saver or NotMyFault.

CleanMyMac scans every inch of your system and safely removes gigabytes of junk in just two clicks. Free up storage on your Mac and boost its performance — CleanMyMac finds 74 GB of junk on an average computer.

Peak performance for your PC. Keeps it going for longer.

Ultimate Windows Tweaker is a freeware Tweak UI Utility for tweaking and optimizing Windows. It can simply be downloaded and used as a portable application to customize your Windows to meet your requirements. With judicious tweaking, it can make your system faster, more stable, and more secure with just a few mouse clicks.

Advanced SystemCare, all-in-one PC optimization utility, specializes in ONE-Click solutions to detect, clean, repair, speed up and eventually protect PC. This "must-have" tool is 100% safe with no adware, spyware or viruses. To better protect users' online privacy with Advanced SystemCare Free 8, "Protect" tab is newly added, which is design to provide quick access to protect browsing from being tracked by automatically cleaning privacy traces once browser closed and detect and resist the attack of malicious plug-in/toolbar by Browser Anti-Tracking and Plug-in/Toolbar Cleaner in this tab. »

Wise Registry Cleaner scans the Windows registry for invalid or obsolete information and presents you with a list of potential problems. To help you decide which items to delete, the program classifies them as "Safe to fix" or "Not fully safe to fix".

Award-winning optimizer that will clean, fix and speed up your PC in a few simple clicks. Experts recommend BoostSpeed as effective, fast and a program the entire family can use.

Wise Disk Cleaner is a quick and safe junk file cleaner. The advanced scan engine will quickly locate junk files in your system and remove them safely. By deleting temporary and junk files, it increases available disk space and improves your system performance.

Wise Care 365 is a bundle of important registry, disk, and other system utilities for your PC. Easy to use and effective, it is the best solution to improve your PC's performance. Get Wise Care 365 and your computer will never run slow again!

O&O Defrag packs file fragments quickly and securely back together to optimize your hard disk under Windows. You can now see what the program does for your system thanks to graphics and statistics, which give you a before-and-after Defrag contrast. Its functionality ranges from a fully automated defragmentation to an individual professional set up. It can do everything a truly good defragmentation software should be able to do.The new background monitoring function helps to prevent fragmentation at source. Newly added and modified files are analyzed and defragmented whenever they are not being accessed. O&O Defrag makes sure that your hard disk is constantly performing at its peak. »

Click&Clean is a free, fast and easy-to-use extension for Google Chrome and Mozilla Firefox that can be used as a powerful private data Cleaner.

Performance Maintainer has combined open source tool such as Little registry Cleaner, Bleachbit and ultradefrag that run periodically for PC maintenance and performance. It is very simple and automated