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If the installation of a Kaspersky application fails with the error “The application was not installed. Your computer may be infected by viruses”, follow the recommendations below.

“The application was not installed.
Your computer may be infected by viruses” error window.

 

Step 1. Run a virus scan

Scan your computer for viruses with Kaspersky Virus Removal Tool.

  1. Download Kaspersky Virus Removal Tool.
  2. Run a scan using the guide in this this article.
 

Step 2. Create a restore point

If you are using Windows 10:

  1. Click on the Windows search icon.
  2. Type “create a restore point” in the search field and click Create a restore point.

Search in Windows 10 with the Create a restore point item found.

  1. Open the System Protection tab, select the disk for which you want to create the restore point.
  2. Click Configure.

System Properties window with the System Protection tab open.

  1. Select Turn on system protection and click OK.

The System protection window with the option turned on.

  1. Click Create.

System Properties window with the Create button highlighted.

  1. Enter the description for the restore point and click Create.

The System Protection window with the restore point description.

  1. Click Close.

Notification on successful restore point creation.

A restore point for the local disk C in Windows 10 will be created.

If you use one of the earlier operating system versions, click the link to view the guide on the Microsoft support website:

 

Step 3. Make sure you have an activation code for your application.

After you create a restore point, make sure you have a 20-digit activation code for your Kaspersky Lab product. You will need to enter it after you reinstall the application.

The code contains Latin letters and numerals divided into four groups of 5 characters.

If you bought the product offline, you will see the activation code in the Quick Start Guide you find in the box.

The activation code in the Quick Start Guide

If you bought the product online, the activation code will be in the email message from the online store.

If you lost the activation code, you can restore it. For instructions, see this this article.

 

Step 4. Delete the files of the earlier installed product versions

  1. Download kavremvr.exe.
  2. Run the file.
  3. Review the license agreement. Click I accept the terms if you agree to its terms.

Kaspersky Lab Products Remover license agreement window.

  1. Enter the code from the picture.
  2. Choose the Kaspersky application you want to remove.
  3. Click Delete.

Kavremover window with the application to remove selected.

  1. Wait until the application is removed and click OK.

The computer reboot prompt pop up.

  1. Reboot the computer.

This will remove a Kaspersky application from your computer completely. If you have several Kaspersky applications installed, remove them one at a time.

 

Step 5. Install the Kaspersky application

Try installing the Kaspersky application once again.

If the issue persists, contact Kaspersky technical support by choosing the topic and filling out the form.

Source : Official Kaspersky Brand
Editor by : BEST Antivirus KBS Team

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