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How to fix fatal errors in Kasperksy Antivirus
5 min. read
Updated onApril 3, 2024
updated onApril 3, 2024
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Some users have reported encountering the error message Fatal error insideKaspersky. This error usually occurs during the installation process of yourKasperskysoftware.
This error can be extremely annoying, especially if you’ve seen it being displayed every time you want to installKaspersky.
The Fatal error message insideKasperskycan be caused by a conflict between a third-partyantivirus softwarethat was installed in the past on your PC.
Moreover, it can be caused by the Host files that are needed to connect theKasperskyinstaller to the download servers.
For these reasons, in this article, we will explore some of the best methods to apply in order to fix fatalerrorsduring the installation of Kaspersky.
How do I fix the Kaspersky Antivirus fatal errors?
1. Run SFC command inside PowerShell (Admin)
System File Checkeris a great Windows 10 built-in tool that is often used to repaircorrupted 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 ourdedicated guideand easily fix this problem.
2. Uninstall other antiviruses
There are someantivirus softwareoptions 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-mentionedantivirus softwarebefore trying to installKaspersky, it is recommended to use any ofthesebest third-party uninstaller toolsto get rid of stubborn software.
Follow the on-screen instructions from the uninstaller tool you chose to completely remove any trace of olderantivirus software, and then try to installKasperskyagain.
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 ofKaspersky. In order to remove it completely, please follow the above steps.
It is also recommended that you clean your Windows registry from time to time. If you need more details, check ourcomprehensive 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 bestantiviruses, 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.
⇒Get ESET HOME Security Essential
In this article, we explored some of the best troubleshooting methods for dealing with the message of Fatal error insideKaspersky.
If you want to discover even more solutions to keeps your computer safe, check ourguide 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 KasperskyAntivirusnormally.
If you want to let us know, you can simply use the comment section found below this article.
Vladimir Popescu
Being an artist his entire life while also playing handball at a professional level, Vladimir has also developed a passion for all things computer-related.
With an innate fascination for research and analysis, and realizing many other people share his passion for this subject, he delved into writing Windows-related articles, so other people can also benefit from the acquired information.
When not writing kick-ass articles, Vladimir likes to spend his time doing Crossfit and creating art.
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