Error "This key is already in use"

Issue

When renewing the license and entering the activation code from the email, an error message may appear stating that "This key is already in use". 

Cause

Renewing the license does not change the activation code. The application license term is updated automatically as soon as you complete the purchase. You do not need to add the activation code to your application manually.

Solution

If the renewed license is used on several devices and the license term failed to update on any of them, follow the steps below.

You can update the license information manually: 

1. Open the application and go to the Licensing window.
2. Click Update the status. 

The correct license term will be displayed.

If the license term did not update after refreshing the status manually, try deleting the license and reactivating the application with the same activation code. See this article for instructions. 

What to do if the issue persists

Useful references

How to renew the license for Kaspersky Lab solutions for home
Error "The key file is not compatible"
"Invalid key" error
“Previous activation code has already been used for license renewal” or “Previous activation code is invalid” error
"This activation code is no longer supported" error
Error "Invalid activation code"
“Previous activation code has already been used for license renewal” or “Previous activation code is invalid” error