1. Download and install Kaspersky (Activate with a Trial License)
2. Go to Kaspersky's settings, click Options, and untick Enable Self-Defence
3. Exit Kaspersky
4. Go to Start, run, then type regedit and press enter
5. Press CTRL+F and type in ProductStatus and hit enter
6. Double click ProductStatus and change Release to Beta (it may say Trial instead of Release)
7. Press OK then open Kaspersky.
8. Tick Activate beta license then press Next and Finish
9. Re-enable Self-Defence.
10. Every 30 days Kaspersky will ask for a license, simply click Activate Beta and boom you're good to go


If it still doesn't work, some users found re-installing the application worked, or removing the existing license key allowed the patch work

Break the black list of keys for Kaspersky Internet Security and Kaspersky Anti-Virus 2010 (9.0.0.463)
Allows you to use keys in a long time!

Instructions for use:
1. Disable self-defense and disables antivirus COMPLETELY.
2. Open the folder databases:

For Windows Vista & Windows 7
C:\ProgramData\Kaspersky Lab\AVP9\Bases\

For Windows XP
C:\Documents and Settings\All Users\Application Data\Kaspersky Lab\AVP9\Bases\

3. Copy folder "Kaspersky_NO_BL" archive into the above folder and replace the files.
4. Run antivirus.

Note:
1. After you first enable anti-virus can sometimes receive a message: "The black list is damaged." Solved by updating the databases.
2. After 5-10 minutes message "Base damaged. Decides also update databases.