If you are planning to reinstall the computer operating system or move to another computer, then you should de-activate your licence first.
These are the steps for licence deactivation:
> Help > Licence manager… > Remove:
> Do you really want to remove your Activation Key and switch to Lite version?
> Yes
Then you will be able to re-activate your licence with the same key on the same or even another computer.
If your computer crashes, then you should contact us at feedback@mobiledit.com and our tech team will remove one of your previous installations manually from our database.