1. Meaning
Spyware is a type of malware that can be installed on computers, and which collects small pieces of information about users without their knowledge. The presence of spyware is typically hidden from the user, and can be difficult to detect. Typically, spyware is secretly installed on the user's personal computer. Sometimes, however, spywares such as keyloggers are installed by the owner of a shared, corporate, or public computer on purpose in order to secretly monitor other users.

2. Purpose
Spyware can infect affect a computer system in many different ways. Spyware can be used to track a users activity, display pop up messages and can be installed on a system unknowingly. Removing spyware can be accomplished by utilizing the proper tools.

3. Install
1.Set up the computer upon which you want to experiment. It's essential to ensure that the computer is isolated from any networks that it might spread the spyware to. You'll need to prepare for the possibility that you'll have to wipe the computer's hard drive, so be sure to back-up any data on it. Also make sure you have no sensitive data, such as financial information or address books that may be recorded by the spyware.

4. 2. Create a snapshot of the system using Windows Recovery
2.Create a snapshot of the system using Windows Recovery. You can revert to this if something goes wrong.
3.Disable any anti-spyware and antivirus software you have on your computer. Otherwise, it may block your attempts to acquire spyware. You may also need to disable anti-spyware features in your browser.

5. 4.Find some spyware. You can read up on spyware forums to find out sites that are spreading spyware. Visit those sites, and agree to install the software they prompt you to download. Frequently, this involves special search bars for your browser, or particular software tools for your computer.
5.Conduct whatever experiments you want while the spyware is installed on your computer. Be sure to remain disconnected from any networks and to avoid logging on to any or banking websites.

6. 6. Revert to your previously saved snapshot
6.Revert to your previously saved snapshot. This will return your hard drive and registry to their original states and remove the spyware from your computer.

7. Disadvantage
Spywares act same thing like a virus however, with a minimal damage only. Better clean it up before it gets worst.

9. Conclusion
Spyware is a large problem. It's large because it affects many people. It's large because the damage it causes is often profound. It's large because it's really hard to solve, both technically and legislatively. And, perhaps most unfortunately, it's large because not everyone knows about it.

10. Meaning
Anti-spyware software is a type of program designed to prevent and detect unwanted spyware program installations and to remove those programs if installed. Detection may be either rules-based or based on downloaded definition files that identify currently active spyware programs. Anti-spyware products are available from a number of vendors, including Sunbelt Software, TrendMicro and Webroot.

11. Purpose -To prevent from getting threats and or infections.
-Just merely to find and inform you rather than preventing.

12. From a CD-ROM or DVD-ROM
1Place your CD-ROM or DVD-ROM anti-virus or anti-spyware installation disc into your computer's disc drive. Note that all DVD-ROM drives can read both DVDs and CDs, but CD-ROM drives can only read CDs and not DVDs.
2Click "Install." The setup program for the anti-virus or anti-spyware program you're trying to install will automatically load on screen once the disc is in the drive.
3Agree to your anti-spyware or anti-virus program's terms of use.
4Click "Next" to view where your program will be installed and the icon placed (usually the desktop). Make any necessary changes as you see fit. If you don't want to make changes, click "Next."
5Click "Finish" to install the anti-virus or anti-spyware program on your computer.

13. From a Digital Computer File
1Double-click (using your computer mouse's left button) on the icon for the installation file for the anti-virus or anti-spyware program you're trying to install. This will load the setup utility for that program.
2Agree to that anti-spyware or anti-virus program's terms of use.
3Click "Next." The program will tell you what directory and file the progam will be filed under and where the icon (or short-cut) to the progam is going to go. Make any necessary changes as you see fit. If you don't want to make changes, click "Next."
4Click "Finish" to install the anti-virus or anti-spyware program on your computer.

14. Instructions
1.Visit the official website for AVG products. Type the word "Free" in their search engine to find the free version of the anti-spyware program and download it to your computer. AVG also offers a premium anti-spyware program for a fee; it has technical support, and is recommended for anyone who does business on the internet.
2.Set your preferences for the AVG anti-spyware program you have just downloaded. You can set the program to automatically update at certain times or you can update it manually. The type of preferences available depends on whether you download the full version or the free version of AVG anti-spyware.

15. 3.Run a complete system scan the first time you use the AVG anti-spyware program. To update the program, right click on the icon and click on "Check for Updates" to download the latest update. After you download the update, run either a complete system scan or choose the type of scan to run. Types of AVG anti-spyware scans include a memory scan, a registry scan, a complete scan, a fast system scan or a custom scan.
4.Read the help section, if spyware or malware is detected on your computer. The scan result will show a recommendation for you, most of the time it's best to follow the recommendation. However you may not want to delete a cookie, so it's best to read the help section for more information.
5Continue to download the updates daily, to keep your computer running smoothly and up to date. If your computer is "acting up" or moving too slowly, run the AVG anti-spyware program.

16. We choose this program because as you are looking for the best anti-spyware programs, you should keep certain aspects of such programs in mind to ensure you find the best one for your needs. You should consider whether you want a program that can handle numerous types of malware, or if you want a more specialized type of software. It is also important to find anti-spyware programs that are updated regularly, to ensure that you are protected from the latest threats as well as programs that perform sufficient scans to find such threats.

17. Advantage Disadvantage
-Scans for web diallers (not really a problem if you use DSL but can hog resources)
-Allows you to fix your registry (not the best registry cleaner but free)
-Allows you to immunise your PC
Disadvantage
-Updates are few and irregular
-Updates never seem to download successfully first go (bad checksum errors)

19. Conclusion
An antivirus based on behavioural detection and analysisVirusKeeper 2010 Pro is a complete antivirus which includes both behavioural analyses, classic scanners (anti-virus, anti-spyware, anti-rootkit), and additional (ProcessWatch, NetWatch, audit report…). This program has the advantage of using a small amount of resources, between 15 and 20 MB of memory in stand by phase and no more 110 MB when in analysis phase. This application, like a large number of recent antivirus solutions, is capable of both detecting classic viruses (signature recognition) and unknown threats by analysing the behavioural characteristics of malicious files (proactive method). Since in the past VirusKeeper was able to detect the Sasser, Korgo and Bagle viruses just after they were released and before they were detected by most other systems, you can therefore trust it to keep you safe! If you are still not convinced, you should note that the application if very flexible and can work in conjunction with any other standard antivirus program