I had already one anti virus software (Kaspersky Antivirus 7.0) installed on my PC. While I was searching some thing on internet, suddenly one window opens and askes me to install an other software to protect my PC from virus. I accepted that and the antivirus (Cyber Security) software has been installed on my PC. Now I want to remove it but I could not. Whenever I am trying to remove this antivirus software by using of add and remove program, it is always insisting to register and buy this software. Please let me know how to remove this software."
Try revouninstaller.com it is free, and removes anything.
Have you tried restoring your system because it could have been a virus you downlaoded, not an anti-virus?
Run Kaspersky and see if it picks anything up…
To restore to a previous point go to start>>programmes>>accessories>>system restore
Hope that helps
http://www.malwarebytes.org/ download and run this free program, you have malware.
1.Download Malwarebytes from malwarebytes.org.
2.Install & run the scan & delete whatever infection it finds.
Incase your browser is hijacked & in normal mode of your computer you are unable to download malwarebytes then start your computer in safe mode with networking option to download & run malwarebytes.
If you need FREE or assisted help to fix all your computer problems please visit http://www.computerspecialistonline.com
Here are removal instructions for cyber security :
http://www.2-viruses.com/remove-cyber-security
Also, kaspersky should detect problems if it is up-to-date.