sir
here i have a doubt
i got three key when i get my new Antivirus kasperkey.
it is shared by my three friends.
if my system get formated means i have to re instal all,in that antiviruses also ,
i have used all the keys but how i have to activate it .
please help me sir
give me some suggetion
thank u sir
im eagerly waiting for ur reply

There is only one way......use the same key/code as you used when you first activated before the format.