• 1.   7-Zip:Every desktop user needs 7-Zip. While Windows 8 (finally!) added the ability to look into ISO files — you still need 7-Zip to see them in Win7 — Win8’s Windows Explorer still doesn’t support RAR compressed files, which are becoming more common as Mac use continues to rise. 7-Zip also creates password-protected Zip files, as well as self-extracting Zips.

     You don’t need to register or pay for 7-Zip. To download go to 7-zip.org

   2.  CCleaner:

CCleaner is the number-one tool for cleaning your Windows PC. It protects your privacy online and makes your       computer faster and more secure. Easy to use and a small, fast download.

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)

 Cleans the following:

 Internet Explorer
Temporary files, history, cookies, super cookies, Autocomplete form history, index.dat files.

 Firefox
Temporary files, history, cookies, super cookies, download history, form history.

 Google Chrome
Temporary files, history, cookies, super cookies, download history, form history.

  Opera
Temporary files, history, cookies, super cookies, download history.

Safari

 Temporary files, history, cookies, super cookies, form history.

Other Supported Browsers
K-Meleon, Rockmelt, Flock, Google Chrome Canary, Chromium, SeaMonkey, Chrome Plus, SRWare Iron, Pale Moon, Phoenix, Netscape Navigator, Avant and Maxthon.

 Windows
Recycle Bin, Recent Documents, Temporary files, Log files, Clipboard, DNS Cache, Error Reporting, Memory Dumps, Jump Lists.

  Registry Cleaner
Advanced features to remove unused and old entries, including File Extensions, ActiveX Controls, ClassIDs, ProgIDs, Uninstallers, Shared DLLs, Fonts, Help Files, Application Paths, Icons, Invalid Shortcuts and more…

Third-party applications

Removes temp files and recent file lists (MRUs) from many apps including Windows Media Player, eMule, Google                 Toolbar, Microsoft Office, Nero, Adobe Acrobat, WinRAR, WinAce, WinZip and many more…

   3.    Auslogics Duplicate File Finder:

Auslogics Duplicate File Finder is a basic program that allows users to find and delete duplicate files taking                             up valuable space on their hard drives.

Auslogics Duplicate File Finder is free. It installs and uninstalls without issues. I recommend this program to all                  users; even those with limited system maintenance experience will find it easy to use.

 4. VLC Media Player:

Simple, fast and powerful media player.

Plays everything: Files, Discs, Webcams, Devices and Streams.

Plays most codecs with no codec packs needed:

MPEG-2, DivX, H.264, MKV, WebM, WMV, MP3…

Runs on all platforms: Windows, Linux, Mac OS X, Unix…

Completely Free, no spyware, no ads and no user tracking.

Can do media conversion and streaming. Download VLC player 

 5. Revo Uninstaller:  

         well and truly uninstalls programs, and it does so in an unexpected way. When you use Revo, it runs the program’s           uninstaller and watches while the Uninstaller works, looking for the location of the program files and for Registry               keys that the uninstaller zaps. It then goes in and removes leftover pieces, based on the locations and keys that the           program’s Uninstaller took out. Revo also consults its own internal database for commonly-left-behind bits, and                 roots those out as well. To download go to Revo Uninstaller

 6. Recuva:

Recuva recovers files deleted from your Windows computer, Recycle Bin, digital camera card, or MP3                                      player. Recuva works on any re-writable media you have.

If you listen to music on an iPod, Recuva can recover files directly from the iPod’s drive. Even though you can’t                  access files on your iPod directly, Recuva can. You don’t have to worry about losing music from iTunes or your iPod        anymore. To download go to Recuva

  7.  Kaspersky TDSSKiller:

The name may lead you to believe that TDSSKiller kills the TDSS rootkit, but the product does much more simply               because so many common rootkits are based on, or derived from, TDSS. The current version detects and removes             SST, Pihar, ZeroAccess, Sinowal, Whistler, Phanta, Trup, Stoned, RLoader, Cmoser, and Cidox. Unlike most rootkit             killers, this one runs in Windows.

To run the program, fill out the form on the TDSSKiller page, wait for Kaspersky to send you a download link.                       Download the program and run it — no installer, just an EXE. If any rootkits are found, you’ll be given the                               opportunity to Delete/Cure, Copy to quarantine, or Skip each identified interloper.

To download go to Kaspersky TDSSKiller

  8. YTD Video Downloader: 

YTD Video Downloader is a great solution to grab the media you need, straight from YouTube, Facebook, Vimeo and       60+ other websites. YTD allows you to manage downloads and conversions on the fly.

      KEY  FEATURES  INCLUDE

• Video Conversion: With YTD you can convert video media to 9 different formats including WMV, AVI and MP3.
• Conversion Quality: YTD allows you to convert video files in 5 different qualities.
• Audio Only: With YTD you can grab a video file and then covert the file to audio-only in an MP3 format.

To download go to YTD Video Downloader

9.  Secunia PSI: 

The Secunia Personal Software Inspector (PSI) is a free computer security solution that identifies vulnerabilities in            non-Microsoft (third-party) programs which can leave your PC open to attacks.

Simply put, it scans software on your system and identifies programs in need of security updates to safeguard your     PC against cybercriminals. It then supplies your computer with the necessary software security updates to keep it       safe. The Secunia PSI even automates the updates for your insecure programs, making it a lot easier for you to  maintain a secure PC.

Using a scanner like Secunia PSI 3.0 is complementary to antivirus software, and as a free computer security program, is essential for every home computer.

10. Malwarebytes: 

Malwarebytes is different. The free version is designed to run manually — I run mine once a week. Malwarebytes       picks up all sorts of creepy crawlies that get past AV programs. When combined with the support on the                                   Malwarebytes forum, Malwarebytes is the ultimate fallback for infected systems — whether you know they’re infected       or not. To download go to Malwarebytes.

Source:  itworld