Manual deactivation can be done if you have lost your computer or cannot access it because of hardware or software damage (e.g., short circuit during a lightning storm or a computer virus). Please use the contact support form on ispringsolutions.com, specify the product name, your license key, and the reason why you have lost access to the system.
You can check the number of activations left on your specific license at ispringsolutions.com after you log in to your account. Make sure you enter the same email that was used for purchasing the license. 2b1af7f3a8