I've just bought Kaspersky Internet Security but I'm unable to install it. The Startup application doesn't do anything. I tried running it as an admin, but to no avail. I have a lot of free space. The Startup application doesn't even open. I tried using the Kaspersky Disc ( autorun ), but the Install button doesn't do anything. A window pops up for half a second and disappears. I've tried using the Kaspersky Recovery disc, and my laptop is free from viruses. Please guide me as of how I can install this application. Thanks!