I wouldn't allow Symantec anywhere near any of my machines.
On my various systems I use AVG, Avast and ClamWin.
My Vista box runs fine, I just dislike the look and feel of it.
Vista doesn't like being changed to the way I like it.
Disabling UAC makes other things malfunction, bad bad bad bad bad
programming!
They call it increased security. I call it reduced functionality.
In MY OPINION, Vista looks like it was designed by a team comprised of old
AOL programmers and graphic designers from Fisher-Price or Mattel.
If you like it, great. I don't and won't unless they totally revamp it.
I told MS from day 1 of the Beta it was ugly, functions were not intuitive &
many 'features' in it needed reworked.
They didn't take any of my advice on the design and put out exactly what
they wanted.
A dumbed down, hold my hand & protect me from myself, version of Windows
that looks like something a 6 year old would find appealing while he's at
Toys-R-Us with Grandma.