A. You should first download KIS 2011 Or Kaspersky Pure 2011 and Install as a trial.
B. Delete the trial code and follow these instruction:
If the crack "fltlib.dll" is deleted by Kaspersky after "some update or reboot" then do the following;
1). Disable internet connection.
2). Disable Kaspersky Self-Defense.
3). Turn off Kaspersky program (Exit Kaspersky from tray bar) ;
4). Copy the crack files "fltlib.dll" and "fltlib.ini" to prog dir,i.e."C:\Program Files\Kaspersky Lab\Kaspersky PURE\", and overwrite the old ones if there are any of them there.
5). Restart into Safemode (F8 while booting), and do the following:
a). Navigate to this program directory "C:\Program Files\Kaspersky Lab\Kaspersky PURE\"
b). Right click the file "fltlib.dll", then go to "properties", and in the "security" tab Check "deny" box towards "write" permission for every user name appears in properties window, as you can see in "Figure 1", then, apply -> OK (Or hit Enter)
6). Activate Kaspersky using the key file ( filename.key ) :
a). Select ‘Activate commercial version’
b). Enter the activation code: 11111-11111-11111-1111X ? click Next
7). Activation error (don’t worry, it is normal) ? click OK
. Browse and select the key file ( filename.key ) ? click Next
9). Activation completed successfully ? click Finish
10). Open Kaspersky and check out the license validity ? The license should be 9131 days remaining or valid for 25 years !
11). Enable internet connection
12). DONE! Now you can update.