Kaspersky Internet Security 2010

If your trial license has expired, then the banner in the main application window will inform you about it. See the picture below:

If notifications about license validity are not disabled, then you will allso see the following pop-up window:

In order to buy an activation code for Kaspersky Internet Security 2010 the computer on which the application is installed should be connected to the Internet.

Step 1: Run Kaspersky Internet Security 2010. You can do it by double clicking on K icon in the right bottom corner near the clock:

Or simply press Start -> All Programs -> Kaspersky Internet Security 2010 -> Kaspersky Internet Security 2010

Step 2: You will see Kaspersky Internet Security 2010 main window:

Click the Purchase license button in the right bottom corner.

Step 3: A page with the following content will be opened in your browser:

Prices are in US dollars

Find your product and select the appropriate options for the license (PC, Year) and then click “Buy Now”.
After that you will be redirected to your Shopping Cart. Follow the instructions and make your purchase. After your purchase processes you will get an email with an activation code for Kaspersky Internet Security 2010.

You do not need to remove the expired trial.  All you will need to do is activate your Kaspersky Internet Security 2010 using the activation code.