At times, installing an antivirus or security solution can be too much difficult if your antivirus is not working. To solve the functional problem of Kaspersky Antivirus, please follow the troubleshooting steps. You may uninstall the security solution, run the installer and follow instructions, restart your computer, download the installer, or check your activation key provide with Kaspersky.
Check for installation was successful or not:
After installation, you might not see, whether the installation was successful or not. Sometimes it gets out before completion of installation you need to check your installation and reinstall the Kaspersky antivirus.
Remove failed installation:
If you did not uninstall the already installed or half-installed product, you might be unable to activate the product. To deal with the Kaspersky Antivirus Not working issue, you are requested to uninstall the old AV product and restart your computer and reinstall Kaspersky Antivirus.
Check if there are any stuck script:-
Check if any KAV installer is running in the background, try after stopping it.
Check your credential:
Check your credential before activating the key. You might be making mistake in the alphabetic or maybe some human error.
Run agent updater then attempts new KAV install:
Before installing the new product, please make sure that the upgrade version is the latest or use force update even agent is upgraded.