Just because it happened to you, it does not mean it will happen to everyone else. Norton is a fine company with a fine product. I just upgraded my Norton products with no trouble at all.
It sounds like you had a bad install. That can happen for a variety of reasons, including a power surge, operator error, or program defect (not likely off a Norton CD, but entirely possible with Windows.....don't get me started). A bad install is no big deal if you have your data backed up. Worse case is it will take some time to rebuild your hard drive.
Word to the wise: Configure your computer to have two drives (generally one physical hard drive that is configured into two logical drives). Put your program files (like Norton, Word, mapping software, Excel, etc.) on your boot drive (generally the C drive), and your data files (like your business spreadsheets, letters you write, posts you save from EO, etc.) on the other drive.
That way, if the computer operating system and/or programs stop working, you can rebuild the C drive from your program CDs and retrive your data from the other drive.
Of course, it is essential to back up your data files in a location other where the computer is kept. If you don't and if your physical hard drive crashes, or your computer is stolen, or burns up with the truck, or whatever; you can go to your backup files and install your data onto the replacement computer.
DO NOT keep your backup files in the same house or truck where you keep your computer.
My backup technique is to use a flash memory stick in the USB port. Every now and then, I copy my data files to it and mail the stick home. Someone there then sends me a second stick to keep with me and use in the truck.
When I'm out of the truck, I wear the stick around my neck. Or, if I take the computer out of the truck, the stick stays in the truck. If the truck burns or is stolen along with the computer, I can be back in business in the time it takes me to buy another computer. If for some reason the stick and computer are both destroyed (like I forgot to take the stick with me out of the truck and the truck was stolen, or I had to flee a burning building when I had the stick in the computer to do a backup), I can be back in business as soon as I can buy a new computer and FedEx can overnight the stick from home.
If you back up your data, computer problems are a tiny fraction of the trouble they would otherwise be. ALWAYS back up your data.
An alternative to the above drive strategy is to simply keep all your data in the Windows "My Documents" folder. Create sub-folders WITHIN the "My Documents" folder to organize your stuff in the way you want it. To back up your data, copy the entire "My Documents" folder onto the flash memory stick.