Do I need to get the activation key for Yodot software again by purchasing the software if I uninstall licensed version by mistake?

No, you do not have to get the activation key for Yodot software again by purchasing the software if you uninstall licensed version by mistake. You can install and activate the software via Online Activation method by using your license key. If you have any issues while activating the software via Online Activation, then you can send an Offline Activation request or contact Support Team for assistance.