Kaspersky is one of the Best antivirus i have ever used.

NO other in market can beat it in terms of performance & efficiency.

But I have only 1 month trial setup....
How can i keep it for a long time.......
this is the question which most persons ask to me whenever i askd them to use Kaspersky...
So here i am with a solution for you people...

First download Kaspersky trial version from their site. Link is given below:
http://www.kaspersky.com/trials

Once installed it ask you to register, skip this section and continue.

After reboot and computer is loaded up with Kaspersky,
click on "Settings"
godown to "Option"
and uncheck "Enable Self-Defence".
Click OK and disbale Kaspersky and exit the program.

Now goto Run prompt and type "regedit"

and go to this value:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\KasperskyLab\Protected\AVP8\environment

Now scroll down to Product status in right handside pane.
Double click on "Product Status"
and change for "Release" to "Beta".
Exit regedit and refresh.
Now loadup Kaspersky...
Now goto Activation
and there will be an new option
"Activate Beta Version"

Click this and you will get 30 days beta trial...
the best thing about this is that u can redo this process after 30 days.

Basically what we have done is fooling the Kaspersky server into thinking that you are using the Beta version of the product but in actual you are using the Release version that will give you all updates which you get in a Release version...