How to remove Kaspersky Antivirus stuck in your computer?

We had Kaspersky Antivirus 2013 on our PC which was un-installed using the Windows "Un-install Programs" in Control Panel. It disappeared from the "Add and Remove Programs" list but it remained even after restart.  If you have a situation like this, this is what you can do to remove the zombie program.

How to remove Kaspersky Antivirus stuck in your conmputer?

But before we proceed, do you have a password set in the Kaspersky Antivirus Program?
If you remember, well and good.

Disable Kaspersky Internet Security password protection:


In Kaspersky Internet Security 2013 you can password-protect access to the application settings. If you forget your password to Kaspersky Internet Security 2013, you will not be able to manage the application.

• Identify your OS type whether a 32 bit or 64 bit operating system.
• Right-click on "My Computer" > Properties
• OR Open a command prompt and type "systeminfo". Look at the info beside "Processor(s). If it is x86 it is 32bit. If it is x64 it is a 64bit system.
• Download the archive passoff2013.zip. 
• Unpack all files from the archive passoff2013.zip. 
• Restart your computer in Safe mode. 
• Restart and when a black screen is appearing press F8 (usually on most computers).
• Once you are in Safe Mode, go to the unpacked folder.
• From the archive run the file depending on you OS type: 
• x86.reg – if 32bit OS is installed 
• x64.reg –if 64-bit OS is installed
• Double click registry file above.
• On the Registry Editor window click Yes.
• See if you get the message " registry key has been successfully added to the system registry".
• Reboot your computer.

Your Kaspersky Internet Security is now disabled.

How to uninstall Kaspersky Antivirus?

• Download the Kaspersky Uninstall Tool
• Run the program
• Choose the Kaspersky Program you have on your system
• Proceed

Your Kaspersky Antivirus should now be completely uninstalled from your computer.