If you deleted your activation code by mistake, then to restore the key file send description of the problem, information about the place, date of purchase and the LICENSE NUMBER (0XXX-000XXX-000XXXX) to Kaspersky Lab Tech Support via My Kaspersky Account.
If a Kaspersky Lab 2011 product was installed and activated, but an activation code was deleted from a computer or a portable data medium, then you can find a license number by opening the main application window and then clicking the License link. In the right part of the window you will find information about your license, which you need to mention to recover your activation code.
How to know the license number in Kaspersky Internet Security 2011?
How to know the license number in Kaspersky Anti-Virus 2011?
If you bought a Kaspersky Lab product via the Internet, then you need to provide online purchase order number from the confirmation letter, wich was sent after you bought your application.
