[KB2388] My Activation Key is not working

Business users: I lost my subscription information or Activation Key

1. To ensure you have the correct activation key, retrieve your lost or forgotten ESET subscription. If you do not receive a license key, there is no subscription registered to the email address you provided.

2. Type or copy/paste the activation key from the email you received and ensure that the activation key:

   • is in a correct form XXXX-XXXX-XXXX-XXXX-XXXX (24 characters long including hyphens)
   • does not have any blank spaces before and after
   • is exactly the same as in the email (has hyphens, is uppercase)
     
     

3. If your Activation Key still does not work:

   • Your subscription might have expired, renew your subscription
   • If you do not know the expiration date of your subscription, visit the retrieve your lost or forgotten ESET subscription web page to have this information emailed to you
   • You never received an email from ESET containing your Activation Key
   • Update your account after an email address change
   • If you recently renewed your subscription, wait 24 hours before downloading new ESET product versions or upgrading
   • Ensure you downloaded the correct product for your subscription (check your subscription email from ESET)
   • Clear the update cache in your ESET Windows home product