Very Useful software's and their uses...

1) System Surveillance Pro :

System Surveillance Pro enables you to see what others are doing on your computer, from the websites they visit to the programs they use. You can configure the program to suit your specific needs, and you can also pause monitoring at any time.

Download link : http://download.cnet.com/System-Surveillance-Pro/3000-2162_4-10332800.html

2) Zone Alaram Firewall : 

ZoneAlarm Free Firewall protects your Windows PC from intrusions and online threats. It's easy to use and works alongside your antivirus and other security tools, including many other firewalls. Its Auto-Learn feature conforms to your computer use. After you've allowed your frequently used apps, ZoneAlarm mostly works in the background, only appearing when something changes, like when you install a new program -- or some hacker tries to.

Download link : http://download.cnet.com/ZoneAlarm-Free-Firewall/3000-10435_4-10039884.html

3) RoboForm : 

RoboForm saves and enters log-in data and passwords, as well as your address, contact data, or any form fields you're always entering the hard way in Web sites and Windows programs. It also manages bookmarks, downloads, notes, and much more.
Trial version works only for 30 days.

Download link : http://download.cnet.com/RoboForm/3000-18501_4-10037672.html

4) CCleaner :
CCleaner is a free Registry and junk-clearing utility for keeping your system clean and optimized.

Download link : http://download.cnet.com/ccleaner/

5) VirtualDJ 8 : 
VirtualDJ 8 records, edits, and mixes digital audio and video from a wide range of sources for free.

Download link : http://download.cnet.com/VirtualDJ-8/3000-18502_4-10212112.html

6) MiniTool Partition Wizard : 

MiniTool Partition Wizard Home Edition 8 adds disk conversion and copying to what was already one of our favorite disk partitioning tools, free or not. It creates, deletes, aligns, moves, resizes, recovers, splits, joins, hides, copies, and converts partitions or entire disks. It can change drive letters, label partitions and volumes, edit properties, and check file systems. It does all that and more for free, though premium upgrades for business environments, servers, and special needs are available.

Download link : http://download.cnet.com/MiniTool-Partition-Wizard-Free-Edition/3000-2094_4-10962200.html

7) HTTrack Website Copier (Offline browser): 

Although plain in design, this handy tool lets you easily store and view your favorite Web sites offline. Instead of supplying a built-in browser, your stored pages can be quickly viewed in your designated browser.

Download link :  http://download.cnet.com/HTTrack-Website-Copier/3000-2377_4-10039773.html

8) Open Office : 

 If you're looking for Microsoft-caliber applications for free, OpenOffice has alternatives to Word, PowerPoint, Excel, Access, and more.

Download link : http://download.cnet.com/Apache-OpenOffice/3000-18483_4-10263109.html

9) Softros LAN Messenger : 

From Softros Systems: Softros LAN Messenger is a secure serverless instant messaging program for user-to-user or user-to-group message and file exchange through your corporate network (LAN, WAN, VLAN, VPN). Our LAN Messenger comes both as conversation-like multiple user LAN chat rooms and as classic single-message exchange with the offline messaging capability. Every message passing through your network will be secured by the AES encryption algorithm.

Download link : http://download.cnet.com/Softros-LAN-Messenger/3000-2150_4-10286515.html

10) Windows USB/DVD Download Tool :

Boot ISO files in DVD or USB

Download link :  https://www.microsoft.com/en-us/download/windows-usb-dvd-download-tool