Well there are many softwares ,to optimize the pc,but some are premium some are free ,i will provide you premium softwares at no cost ,but first grab these ones .
1. K-Lite Codec Pack (Full)
K-Lite Codec Pack (Full) includes 99% of all the audio and video codecs you will ever need. Just install this pack, and you will be able to play just about any media file out there. It includes DivX, Xvid, x264, MPEG 1/2,MP3, Monkey`s Audio,Media Player Classic, On2 V6/V7 and many others. The installer lets you choose which codecs to install, or you can use the default profile which installs all of them. K-Lite Codec Pack also provides access to configuration options for each codec whenever available.
2. Mozilla Firefox
Mozilla Firefox is an independent web browser that offers tabbed browsing combined with numerous handy features like popup blocking, Live Bookmarks (RSS integration), password manager and more. The functionality can be extended with dozens of freely available plug-ins (Extensions). Firefox can import all your Internet Explorer Favorites as well as some other settings, so switching is made easy. The default features of Firefox are good for general web surfing. An abundant collection of freely available extensions (add-ons) allow you to easily add the features you want and customize the browser to fit your needs. Other features include integrated spell checking, interface improvements, improved RSS features, and integrated anti-phishing. Firefox 4.0 offers many changes over the previous version, supporting new web technologies, improving performance and ease of use.
3. PC Inspector File Recovery (data recovery tool)
PC Inspector File Recovery is a data recovery program with support for FAT 12/16/32 and NTFS file systems. It recovers files with the original time and date stamp, even when a header entry is no longer available. On FAT systems, the programs finds partitions automatically, even if the boot sector or FAT has been erased or damaged. PC Inspector File Recovery offers an easy to use interface that will scan your drive and automatically make files that can be recovered available from a “Deleted” folder in an Explorer Style navigation tree.
4. Advanced SystemCare™ Free v3
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 registry cleaner and system optimizer is a “must-have” tool to speed up your slow computer. 100% safe with no adware, spyware, or viruses; a PC maintenance program that’s incredibly easy to use.
5. Wise Registry Cleaner
Wise Registry Cleaner Free is a powerful registry cleaner and optimizer. It speeds up your PC by cleaning up junk and errors that accumulate in your Windows Registry. It’s safe and easy to use.
6. Wise Disk Cleaner
Clean your disk with Wise Disk Cleaner and your computer will run faster. You won’t have to worry about filling up your hard drive or replacing it with a newer, bigger one.
CCleaner is a freeware system optimization, privacy and cleaning tool. It removes unused files from your system – allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities such as your Internet history. Additionally it contains a fully featured registry cleaner. But the best part is that it’s fast (normally taking less than a second to run) and contains NO Spyware or Adware!
8. Quick Media Converter
Quick Media Converter enables you to convert between most audio and video formats, including AVI, DVD, Quicktime, Flash, Xvid, DivX, MPEG, MP3, WMA, MP4, 3GP and many others. You can convert multiple files (of different formats) in a single process and optionally customize the output settings in Expert Mode. In addition to media conversion, the program also includes CamStudio, which allows you to record desktop acxtivity to video, as well as a WebCam capture feature that enables you to record video directly from your webcam device. Quick Media Converter uses open source code from softwares such as FFmpeg and FFplayer.
9. Pivot Stickfigure Animator
Pivot Stickfigure Animator is a unique software, that allows you to create stick figure animations easily and without any artistic skills. You can move the sections of the sick figure and easily create a chain of animation frames that can be previewed as you go. You can use more than one stick-figure in the animation, and even create your own stick figures using an easy to use visual editor that lets you assemble objects out of lines and circles. In addition, you can optionally set animation size, speed and more. The result can be saved as animated GIF file. Fun and easy to use, surprisingly well featured.
10. Ad-Aware Free (remove adware components)
Ad-Aware Free is an adware and spyware removal tool that scans your memory, registry, hard, removable and optical drives for known data-mining, aggressive advertising, and tracking components. It then lists the results and offers to remove or quarantine the components. The program detects a wide range of adware/spyware related issues and can be updated with the latest signatures via the built-in update utility. The free version has limited real-time protection, only processes are scanned.
11. AIMP2 (MP3 and audio player)
AIMP2 is a full-featured audio player that supports all popular audio formats as well as Internet radio playback and recording. It offers a media library, sound recorder and audio format conversion along with a modern, user-friendly interface. The program also includes a 18-band equalizer, build-in sound effects, tag editing, playlist support, automatic cross-fading between tracks, personal ratings and much more.
12. Unlocker (delete files that are locked)
Unlocker enables you to delete, move or rename files or folders that are locked by other processed (Access is denied, Sharing Violation etc.). It integrates into the Windows right-click menu, and opens a dialog that shows you the processes that are currently locking the file, thereby preventing it from being deleted. You can choose to terminate and unlock the processes, or otherwise delete the file on the next reboot.
13. Photoscape (photo editing suite)
PhotoScape is a complete photo editing suite that includes image browsing/viewing, photo editing, picture page printing, photo resizing and renaming, and even RAW conversion. The photo editor includes standard editing features as well as automatic and custom adjustment options for brightness, contrast, exposure, backlight corrections and more. It also offers a variety of image effect filters and a collection of image frames and masks that can be applied to enhance the presentation of your photos. Photoscape also includes extensive printing options that allow you to create print layouts to combine multiple photos on a single page according to their print size. You can also create image collages from different layout templates, that can be saved as new JPG files. Other features include batch editing, GIF animations, EXIF display, slideshow and more. A very complete package that will meet most of your digital image editing needs.
14. Orbit Downloader (file and media downloade manager)
Orbit Downloader is a file and media downloader that supports supports HTTP, HTTPS, FTP, MMS and RTSP protocols, as well as P2P technology. It accelerates downloads by utilizing multiple connection streams and offers download management with custom categories as well as pause and resume of downloads. The program also provides an easy way to download video clips from YouTube (and other video sites) by simply hovering your mouse over the clip and selecting to download the video as .swf or .flv from the newly installed download menu. Other features include download scheduling, browser integration (IE, Firefox, Opera), proxy support, drop target, anti-virus integration, and more.
15. CD Recovery Toolbox Free (recover files from scratched CDs)
CD Recovery Toolbox Free is a data recovery tool, designed to recover files from scratched or otherwise damaged or corrupt CD, DVD, HD DVD and Blu-Ray disks. Just select the drive that contains the media you want to recover from, check the files you want to restore and start the recovery process. Depending on the level of damage, the recovery process may take a long time, and may not recover all the files. It did recover a good portion of images for us from a badly scratched CD that Windows was not able to read properly.