Maxed out on downloads

I had to run a system refresh on my PC and need to re- install NIS .  I've used 3 of 3 allowed downloads one of which is the PC that crashed. In  "Manage My Installs" can I free up the install to my PC and re-install it to the same PC. The message :

You have chosen to remove Norton Internet Security from this device. Are you sure?

Note: This is recommended only if the device is lost or is no longer being used.

appears when I select my PC. Not sure if that will block my PC from the re-installation. Any comments. Thanks