Use Kav/kis without key for life time

First off download either KIS or KAV from the Kaspersky web site.
Once installed and it asks you to register, skip through this section.
After the computer has rebooted load up Kaspersky, click on “Settings” and go down to “Options” and un-check
“Enable Self-Defence”. Click ok.
Now disable Kaspersky and exit the program.
Next run regedit

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\KasperskyLab\protected\AVP8\environment\
Scroll down to Product Status and change from “Release” to “Beta”
Exit regedit and reload Kaspersky, you’ll notice that when you goto the area where you
normally input your key you now have an option to “Activate Beta Version”.
Click this and you’ll get a 30 day BETA trial, the great thing is you can just redo this time and again,
so 30 days later just do the same thing.
Basically what you’ve done here is fool the Kaspersky server into thinking your using the BETA version of
the product when infect your actually using the Release version that will give you all the updates etc like
a full release.