do the dashes in the key number need to to be included

Hi I have Norton Utiliies ver 16 on some of my pcs, but one of them has NU ver 14 that I load from a disk. I understand there is ino subscription on these products. I cannot run or activate the NU 14 product  after double checking the security key code. I have tried  infilling the dashes and by omitting them only to get the message that the trial period has expired. Surely there cannot be a trial period on a purchased disc? Bye the way the Norton Utilities 16 package came with a Norton Security package and it was some time later that I realised that I had inadvertantly purchased this additional product that runs on 3 pcs. I bought NIS products for a number of years now. Should I be able to reload these utilities packages on   HDD that I replaced?.Wallace