Soon I should be taking delivery of a new Windows 10 tablet PC to replace one that is fatally broken. Instead of 32 bits it will be 64 bits, something I know little about. I expect one of the first things I will want to do is to install Norton Security, for which I have a long subscription. Is there a 64 bit version? Or if not, does the 32 bit work OK on a 64 bit machine? If not, what are the ramifications, if any?