I started using Norton Disk Doctor in 1990 and have been faithful. BUt no more, and here's why.
If you do not want to continue to pay to subscribe to virus updates, you will deal with a pop-up every few days reminded you to go update your definitions. This feature cannot be turned off and operates independently of the start menu.
So, unless you intend to buy a "subscription service" in addition to your program,
BURN IT BURN IT BURN IT - DO NOT INSTALL IT.
I have been in contact with Symantec's legal department regarding their falsely advertising a subscription service as a software program.