System maintenance.

Though your operating system may contain various maintenance tools, your computer will slow down with time. If time is of the essence for you, you will need to clean up and accelerate your PC on a regular basis. I have tested several products such as SpeedUpMyPC, MagicTweak and Release RAM before I tried for free and then ordered the full version of Registry First Aid.

Magic Tweak
MagicTweak is a special program designed to optimize and personalize Microsoft Windows and provides one-stop instant access to a variety of Windows settings that can be altered for a friendlier Windows environment. This unique software makes it easy to tweak hundreds of hidden settings in Windows XP/2000/Me/98.

 Magic utilities
Magic utilities is a cute program designed to make your computer clean and more stable

ReleaseRAM
ReleaseRAM frees up a specific amount of RAM to the CPU at anytime allowing your system to have memory available, so programs are executed faster because free memory is ready and waiting. It can automatically free up RAM if a critical amount of free RAM is reached. With this option R-RAM is running in the background.

SpeedUpMyPC
 SpeedUpMyPC helps you get a faster, cleaner, and safer PC within minutes - without being a Windows expert! SpeedUpMyPC automatically finds the best settings for your PC and carefully controls system resources to give the best performance. It is easy to use and really cleans up system, monitor resources, and improves performance, too.

 Registry First Aid
Windows crashing and having software lock up on you or taking forever to load can be problems caused by numerous nagging file references in the Windows registry pointing to files that no longer exist. Registry First Aid will find these files and folders that you have moved on your hard drive and help!