.NET Framework or .Net Desktop Runtime error when installing or starting a Kaspersky application

Issue

You can encounter a .NET Framework or .Net Desktop Runtime error during the installation or start of a Kaspersky application.

Solution

If the .Net Framework error occurs, follow the steps below:

1. Download and run Microsoft .NET Framework Repair Tool.
2. Follow the steps of the installation wizard and then restart the computer.
3. Try installing or starting a Kaspersky application once again.

If the Microsoft .NET Framework Repair Tool did not help to solve the issue, follow the recommendations depending on the version of your operating system:

For Windows 10, Windows 11:

Install the latest operating system updates from the Microsoft website and try installing or running a Kaspersky application once again.

If the .Net Desktop Runtime error occurs, follow the steps below:

1. Download and install Microsoft .NET Desktop Runtime.
2. Try installing or starting a Kaspersky application once again.

For Windows 8:

1. Download and install the latest version of .Net Framework.
2. Try installing or starting a Kaspersky application once again.

For Microsoft Windows 7 Service Pack 1:

1. Delete the application using the standard Windows tools (click Start → Control Panel → Programs and Features → Uninstall/Change).
2. Download and install .Net Framework.
3. Try installing and starting a Kaspersky application once again.

What to do if the issue persists

If the issue persists, submit a request to Kaspersky Customer Service by choosing the topic of your request.