How Can I Fix An ''invalid Key File Error'' Appearing In My Kaspersky Anti-virus?

How Can I Fix An ''invalid Key File Error'' Appearing In My Kaspersky Anti-virus?

Kaspersky is one of the safest and most-used security software. It provides maximum security for your computer and the data stored on it. This software comes with some great features like real-time protection, detection & removal of viruses, Trojans, worms, spyware, adware, keyloggers, malicious tools, and more. It is easy to install and use. However, there are some errors or issues encountered by the users while using the Kaspersky antivirus software on their computers. “Invalid file error” or “License problem detected” is one of the common errors experienced by many users. If you are also encountering this error, scroll down this page to know how to fix Kaspersky’s invalid file error.

Cause

  • Step 1: Kaspersky’s invalid file error occurs due to the incomplete installation of the antivirus database or because of any problem that occurs while installing the software. 
reinstall and reactive the Kaspersky antivirus

Solution

  • Step 1: To fix this error, reinstall and reactive the Kaspersky antivirus software on your computer. The following instructions explain the same.

NOTE: The instructions given below are suitable only for Windows computers.

How Can I Fix An ''invalid Key File Error''

Step 1: Removing or uninstalling the existing Kaspersky software

You can uninstall the Kaspersky software from your Windows computer from the Programs and Features screen or using the Kaspersky application removal tool.

Using the Programs & Features screen

  • Step 1: Open the Programs & Features screen.
  • Step 2: Select the Kaspersky antivirus software from the list of programs.
  • Step 3: Click on the Uninstall/Change button. 
 UNINSTALL KASPERSKY Antivirus
  • Step 4: Now, a pop-up dialog box titled Kaspersky will appear on the screen.
  • Step 5: In the opened dialog box, type the security key of your Kaspersky application.
How Can I Fix An ''invalid Key File Error'' Appearing In My Kaspersky Anti-virus?
  • Step 6: Click Yes > Next > Next > Next > Save > Next.
  • Step 7: In the Saving objects dialog box, select the License information and iChecker data options and click Next > Remove > Yes. 
How Can I Fix An ''invalid Key File Error'' Appearing In My Kaspersky Anti-virus?

Using the Kaspersky application removal tool

  • Step 1: Initially, download the Kaspersky removal tool file from the Kaspersky software’s official page.
  • Step 2: After downloading the file, run it on your computer.
  • Step 3: Click Accept.
  • Step 4: Perform the on-screen prompts to remove the Kaspersky antivirus software from your computer.
  • Step 5: After removing the Kaspersky software, restart the Windows computer. 

Step 2: Re-install the Kaspersky antivirus software

  • Step 1: Download the latest version of the Kaspersky software from its official page.
  • Step 2: After downloading the installer file, run it on your computer.
  • Step 3: Click Continue on the Welcome screen of the installer wizard.
  • Step 4: On the Everything is ready for installation screen, click Install.
  • Step 5: Now, the installation will be initiated.
  • Step 6: Once it is done, click Apply > Done to close the installation wizard.

Step 3: Activate the Kaspersky application

  • Step 1: Launch the Kaspersky application.
  • Step 2: Now, click on the License status or License is missing link and select Licensing or Activation.
  • Step 3: Click on the Enter activation code button.
  • Step 4: Now, if you have a valid Kaspersky activation code, then enter it in the given field and click Done to complete the activation process.
  • Step 5: In case you don’t have an activation code, click on the link named, “Where can I find an activation code?” and follow the on-screen instructions to activate the software.
  • Step 6: After activating the software, check if the Kaspersky invalid file error is fixed. If not, contact us to know more about fixing it.