That is the answer....use the norton removal tool! Any other way can cause serious repercussions as Norton is so embedded within the root directory of your computer and hidden that it is never really totally removed.

As for windows one care!

Read the article!
Security Suite Smackdown, Part I - Windows Live OneCare - Reviews by PC Magazine

and from the wikipedia please read the criticism section....

Windows Live OneCare - Wikipedia, the free encyclopedia

It is your computer and you are free to use and install whatever program you want....It took me about 10 minutes of the first page of googleing windows onecare to find and read several articles concerning windows one care..

one company found that out of 17 programs tested for antivirus windows onecare came in last in 2007 and second to last in 02/2008 .