If you have a genuine license serial of kaspersky pure,
then you can easily convert it to a License Key File and store it in
your pc for future use. Here’s how you can make a kaspersky key file
from the activation serial code of Kaspersky Pure.

Make a Kaspersky Pure License Key File From Serial Code

1. Visit https://activation.kaspersky.com/.
2. Now enter your activation code in the filed provided.
3. If
   you have already registered a kaspersky account before, then just enter
   the customer ID and Password in the fields. Else you can leave those
   two fields and type in the kaspersky activation serial code alone.
4. After entering the Verification code and pressing Next, you can download the Kaspersky Pure Activation Key File.
5. Save
   the key file to your pc, so that you can activate kaspersky later
   without an internet connection, ie. just by using the key file alone.