Patch O

Patch O for Kaspersky Anti-Virus version 18.0.0.405 was released on August 15, 2022.

Patch O adds the support of the RFC9218 standard for HTTP/2. This will help avoid issues opening some websites. 

To install patch O:

1. Run the database update in Kaspersky Anti-Virus. For instructions, see this article. 
2. When the update is complete, restart your PC.

Patch O will be installed. To check if the patch was installed, open the application and click the Support icon in the lower part of the main window. In the opened window, the letter o will be added to the application version.

Patch N

Patch N for Kaspersky Anti-Virus version 18.0.0.405 was released on February 28, 2022.

Patch N fixes the issue with loading certain websites in a browser.

Patch M

Patch M for Kaspersky Anti-Virus version 18.0.0.405 was released on November 24, 2020.

In patch М we have added a new update script. Now you can switch to the latest version of Kaspersky Internet Security when renewing your license.

Patch L

Patch L for Kaspersky Anti-Virus version 18.0.0.405 was released on May 16, 2019.

In Patch L:

• For Windows 10 users:
  • We have added full support for the RS6 (19H1) update. This means that you will not have any issues with our antivirus when the operating system updates.
  • We have improved your security by adding support for the Per-Directory Case Sensitivity component (allowing you to enable case senstivity in file names and paths), which was added in the RS5 update.
• We've simplified the process for upgrading to the latest version of Kaspersky Security Cloud. You now only need to complete two steps.
• We've added an option to switch from Kaspersky Anti-Virus to our new solution with the first adaptive protection system, Kaspersky Security Cloud.
• We've improved Application Control: the component can now categorize applications and scripts in OneDrive, improving your security when using the cloud. 
• Previously, the URL checker module would occasionally work incorrectly with the new versions of Internet Explorer and Google Chrome. We've fixed this issue.
• Previously, Kaspersky Anti-Virus occasionally did not update information about the license term when it was renewed.
• We've fixed several other small errors that we detected and that you brought to our attention. 

To install Patch L:

1. Run the database update of Kaspersky Anti-Virus 2018.
2. Restart the computer when the update has completed. 
3. Open the application.
4. In the lower part of the window, click the Support icon.

If the update is successful, the letter l will be added to the application version. 

Patch K

Patch K for Kaspersky Anti-Virus 2018 was released on October 15, 2018.

Patch K adds support of Windows 10 RS5 and improves compatibility with Google Chrome.

Patch J

Patch J for Kaspersky Anti-Virus 2018 was released on August 27, 2018.

Patch J fixes some bugs and improves application performance.

Patch I

Patch I for Kaspersky Anti-Virus 18 was released on July 16, 2018.

In Patch I:

• Support of Cloud Files in Windows 10 RS3 and RS4 has been added.
• A notification has been added about an issue installing a Kaspersky Lab certificate in Mozilla Firefox if a primary password has been set.
• Protection against the deletion and renaming of the klhkum.dll and klfphc.dll files has been added.
• New points have been added to the End User License Agreement.
• The Upgrade window has been updated: options available for the current license have been added.
• The window that appears upon license expiration has been updated: an option to enter an activation code has been added.
• An error has been fixed that caused the icon denoting a secure website not to be displayed in Yandex.Browser, Internet Explorer and Google Chrome.
• An error launching Mozilla Firefox after updating the Kaspersky Anti-Virus databases and rebooting the computer.
• An error with checking certificates for mail clients and sending messages to an email address has been fixed. This error occurred when the Web Anti-Virus component was enabled.
• An error has been fixed that occurred when making payments using Protected Browser in Internet Explorer and Mozilla Firefox after opening a link in an email from Rabobank.
• An error has been fixed that occurred when opening links from the notification about an unsecure connection in Microsoft Edge.
• An issue has been fixed that caused the Internet connection speed to drop on Windows 10 RS3 (64-bit).

Patch H

Patch H for Kaspersky Anti-Virus 2018 was released on May 4, 2018.

Patch H is installed automatically with the database update for Kaspersky Anti-Virus 2018 version 18.0.0.405 and adds the following:

• Possibility of upgrading Kaspersky Anti-Virus 2013 and 2014 to Kaspersky Anti-Virus 2018.
• Support of the Windows cumulative update released in January 2018.
• Support for Cloud Files in Windows 10 RS3 and RS4.
• Complete support of Windows 10 RS4.
• Support for the 'Cameras' webcam type.

Patch H also fixes:

• An application update error on 64-bit Windows 10 (build number 10240).
• An issue in which the Kaspersky Protection extension icon was not displayed in the Mozilla Firefox toolbar.
• An error that occurred when loading https pages in the TOR browser.
• An error when the connection between Kaspersky Anti-Virus and Kaspersky Protection extension in Mozilla Firefox.
• An error when Internet Explorer stopped unexpectedly when Kaspersky Internet Security was running.
• An issue using Estonian ID cards in Protected Browser.

Patch G

Patch G for Kaspersky Anti-Virus 2018 was released on February 19, 2018.

Patch G is installed automatically with the database update for Kaspersky Anti-Virus 2018 version 18.0.0.405 and fixes:

• An issue obtaining the certificate when establishing a secure connection.
• An issue with using a personal certificate for authentication on websites.
• An error when loading https pages in Firefox 58.0.1.
• Some errors in the application interface.

Patch G also adds support for Windows 10 RS4.

Patch F

Patch F for Kaspersky Anti-Virus 2018 was released on December 27, 2017.

Patch F is installed automatically with the database update of Kaspersky Anti-Virus 2018 version 18.0.0.405 and fixes the following:

• The compatibility issue with the Microsoft Security update released on January 9, 2018.

Patch E

Patch E for Kaspersky Anti-Virus 2018 was released on December 4, 2017.

Patch E is installed automatically with the database update for Kaspersky Anti-Virus 2018 version 18.0.0.405 and fixes:

• Issues during the download process that cause the error "files are corrupted".
• Issue with reduced Internet connection speed when Kaspersky Anti-Virus 2018 is installed.
• Errors 0x80080005 and 0xc8000408 with Windows Update when Kaspersky Anti-Virus 2018 is installed.
• Issue with Web Anti-Virus when loading certain sites.
• Issue with self-defense of files and the registry in Kaspersky Anti-Virus 2018 when starting the application for the first time after upgrading to Windows 10.
• Issue loading https pages in the Mozilla Firefox Nightly browser.
• Issue with the application interface.

To install Patch E:

1. Run the database update of Kaspersky Anti-Virus 2018.
2. Restart the computer when the update is completed. 
3. Open the application.
4. In the lower part of the window, click the Support icon.
5. If the update is successful, the letter e will be added to the application version. 

Patch D

Patch D for Kaspersky Anti-Virus 2018 was released on October 13, 2017.

Patch D is installed automatically with the database update of Kaspersky Anti-Virus 2018 version 18.0.0.405 and fixes the following:

• Error entering data in some fields when using Microsoft Edge.
• Some interface issues. 
• Slow loading of the http://dortex.pl/nowa-strona/website when Web Anti-Virus s enabled.
• Installation error.

The patch also adds the support of: 

• Firefox 52.x and later
• Firefox ESR 52.x and later 
• Windows 10 Fall Creators Update (Redstone 3)

Firefox versions earlier than 52.x are not supported by Kaspersky Protection.

Patch C

Patch C for Kaspersky Anti-Virus 2018 was released on August 14, 2017.

Patch C is installed automatically with the database update of Kaspersky Anti-Virus 2018 version 18.0.0.405 and fixes the following:

• Some interface errors. 
• MS Edge пnot responding when trying to open https pages.
• Returning errors or not responding when managed via the touchscreen running under Windows 10 Creators Update (Redstone 2).

Kaspersky Anti-Virus 2018 was released on July 25, 2017. Full version number is 18.0.0.405.

About Kaspersky Anti-Virus 2018

Kaspersky Anti-Virus is an all-purpose application designed for bsdic protection of home users' computers against digital threats.

Find detailed information about the Kaspersky Anti-Virus 2018 components in the following Knowledge Base sections:

• Protection
• Performance
• Scan
• Additional settings
• Tools. 

What’s new in Kaspersky Anti-Virus 2018

Kaspersky Anti-Virus 2018 provides the following new features:

• Notifications from Web Anti-Virus regarding pages containing adware or legitimate software that can be used by criminals to damage your computer or personal data.
• There is now protection against infection while the operating system is being restarted.
• There is now the capability to navigate from the Licensing window to the My Kaspersky portal to view information about the activation code.
• You can now add a new activation code if the license has expired.

Improvements:

• Diagnostics of application installation issues have been improved. Now, when there is a problem with application installation, the application saves the installation logs instead of deleting them.
• Application Self-Defense during upgrade to a new version has been improved. Now there is protection for not only the current version but also for the newly installed application prior to it being started for the first time.
• Improved speed for certain installation scenarios, the first startup, and the first update of the application.
• The procedure for displaying notifications has been improved.
• Improved notification that appears if you disable the System Watcher component. The notification now contains a more detailed description of the consequences of disabling the component, especially regarding the resultant lack of protection against encryptors.
• The application now waits a longer amount of time before displaying a notification about outdated databases and application modules when the computer wakes from sleep mode.

Main known issues:

• If the Always scan encrypted connections check box is selected, the application will scan encrypted connections even if you have paused protection.
• If the application was installed in Windows 7 and you upgraded the operating system to Windows 10 but now want to revert back to Windows 7, you are advised to uninstall the application and install it again after reverting back to Windows 7.
• On certain websites, the application may block the download of additional pages in pop-up windows or frames. To resolve this issue, clear the Inject script into web traffic to interact with web pages check box in the network settings of the application.
• If interactive protection is disabled, tasks for processing threats on your computer from the My Kaspersky portal might not be performed.
• Certain types of objects from the category Legitimate software that can be used by criminals to damage your computer or personal data are not processed from the My Kaspersky portal. These threats must be processed on the computer.