I did include the following nformation in my previous post - have you done anything in regards to the questions?
Any reinstall of a Norton product on the same system does not use an addtional license, so you will not lose a license by doing a reinstall (even running the NRT).
IMHO, prior to doing a reinstall, I would verify you have no other security programs running in real-time on Laptop A and if you do or did have any other Antivirus installed, not only uninstall it via the Control Panel, but also locate and use the removal tool for that product.