i went on the kaspersky website found this solution:
Restart Kaspersky Internet Security 2011 and try to update databases
If the update process ends with the same error, then try to restart the application and update the databases once again. In order to do so, perform the following actions:
right-click the application icon in the right lower part of the screen in the Taskbar notification area
select Exit from the context menu that will open
start the application. To do so, select Start - All programs - Kaspersky Internet Security 2011 - Kaspersky Internet Security 2011
start the update process via the application interface as it is described above
when i clicked on the exit at the task bar and tried to opn it from start menu it is now not opening....i dnt hav a CD of it as well...
PLzzz HELP....its urgent.....!!!!!!
PLZZZZZ......
Does it occur on all Endpoints? If so, some file in the KSC update repository is corrupted. If it only happens in a specific workstation with launching the rollback task of databases it would be enough If it occurs in all Endpoints, try these steps: Add the following exclusions to your proxy server:.kaspersky-labs.com.kaspersky-labs.com /. Kaspersky Lab products update automatically, but sometimes certain issues can happen. Let’s see how you can solve them. If your security solution window turns red and and shows the ‘Database extremely out of date’ warning, or you have a ‘license issue’, try updating your software manually.
That error message is misleading. I had a workstation show up in the Kaspersky Security Center status report as Protection is Off. That however was not the case after lots of troubleshooting.
4 Steps total
Step 1: Check the Application status in KSC

Kaspersky Databases Will Not Update
The application and network agent status showed running which of course means that real time monitoring is running. I also restarted the KLNAGENT service on the local workstation to verify that it was communicating to KSC. Followed that up with a reboot. Still no change.
Step 2: Check the status of the tasks on the client
Launch the KSE 8 or 10 by clicking the icon in the system tray. I then took a look at the scheduled tasks and the update task showed failed - Black list of sites corrupted. I don't have a screen shot of the message, but it would be where you see Update, etc. I believe it also said that it had failed at 1% which is more or less upon initiation.
Step 3: Clear the Bases

Ok, now you need to go to the following directory via Windows Explorer, --> C:ProgramDataKaspersky LabKES8Bases or %networkagentbases. The 8 can be substituted with 10 of course if you are running KES 10. I deleted all of the DAT, XML and XMS files in that directory. I left the sub directories intact.

Step 4: Manually Update Databases
I then went back into the KES application and manually started the Database update. Right Click update and then click Start Update. After completion of the update the Corruption message went away and showed the status you see above and it reported back as OK status.
Kaspersky Databases Are Corrupted Sd Card
