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Service articles: Active infection: Failed to install a Kaspersky Lab product. Your computer might be infected


During the installation of a Kaspersky Lab product, you may encounter an error caused by the presence of malware that blocks the installation of antivirus software on your computer.

To disinfect the computer, use the utilities listed below.

Kaspersky Virus Removal Tool

If such an error occurs, the setup wizard will prompt you to download the Kaspersky Virus Removal Tool utility, a special tool to disinfect your computer from viruses and other types of malware. To start working with Kaspersky Virus Removal Tool:

  1. Download Kaspersky Virus Removal Tool. For instructions on how to download the file, click a link that refers to your operating system:
  2. See how to use Kaspersky Virus Removal Tool.


Use the TDSSKiller utility to remove rootkits. To disinfect your computer using the utility, do the following:

  1. Download TDSSKiller.
  2. Run the TDSSKiller.exe file on the infected or probably infected computer.
  3. Wait until scanning and disinfection process is completed and then restart the computer.

Kaspersky Rescue Disk

If it is impossible to disinfect your computer with the help of  Kaspersky Virus Removal Tool, use Kaspersky Rescue Disk. To start working with Kaspersky Rescue Disk:

  1. Download Kaspersky Rescue Disk.
  2. Write Kaspersky Rescue Disk to a CD/DVD or a USB drive and boot your computer from it.
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