This error can be extremely annoying, especially if you’ve seen it being displayed every time you want to install Kaspersky. The Fatal error message inside Kaspersky can be caused by a conflict between a third-party antivirus software that was installed in the past on your PC. Moreover, it can be caused by the Host files that are needed to connect the Kaspersky installer to the download servers. For these reasons, in this article, we will explore some of the best methods to apply in order to fix fatal errors during the installation of Kaspersky.
How do I fix the Kaspersky Antivirus fatal errors?
1. Run SFC command inside PowerShell (Admin)
System File Checker is a great Windows 10 built-in tool that is often used to repair corrupted system files. This utility is available on all versions of Windows OS. However, if the Sfc /scannow stops on Windows 10, you can take a look at our dedicated guide and easily fix this problem.
2. Uninstall other antiviruses
There are some antivirus software options that require you to use a specialized removal tool to delete the entirety of the files. Here are some examples: Avast, AVG, ESET, McAfee, Sophos, and more. If you’ve used any of the above-mentioned antivirus software before trying to install Kaspersky, it is recommended to use any of these best third-party uninstaller tools to get rid of stubborn software. Follow the on-screen instructions from the uninstaller tool you chose to completely remove any trace of older antivirus software, and then try to install Kaspersky again.
3. Check for any leftover registry keys
Windows creates a registry key whenever you uninstall a Kaspersky product, and for some reason, this key gets forgotten by the installer when rebooting your PC to clear the files. This registry key can cause conflicts with the new installation process of Kaspersky. In order to remove it completely, please follow the above steps. SPONSORED It is also recommended that you clean your Windows registry from time to time. If you need more details, check our comprehensive guide.
4. Reset Hosts file to default settings
The Hosts file is very important for Windows. It is used by the OS to map human-friendly hostnames to numerical Internet Protocol (IP) addresses that identify and locate a host in an IP network.
5. Use another third-party antivirus
Kaspersky may be one of the best antiviruses, but, when you struggle with multiple errors, you might consider using another reliable solution. We recommend you to use a cyber security tool that represents a new approach to truly integrated computer security. The most recent version of its internal scanning engine, combined with custom Firewall and Antispam modules, utilize speed and precision to keep your computer safe. The result is an intelligent system that is constantly on alert for attacks and malicious software that might endanger your computer. ⇒ ESET Internet Security In this article, we explored some of the best troubleshooting methods for dealing with the message of Fatal error inside Kaspersky. If you want to discover even more solutions to keeps your computer safe, check our guide including the best antiviruses for Windows 10. We would love to find out if these methods helped you solve your issue and manage to install Kaspersky Antivirus normally. If you want to let us know, you can simply use the comment section found below this article.
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