Stay away from McAfee

I have the option of downloading free McAfee internet security from my ISP,
so I did.

Right away I noticed a serious slow down, but I decided to give it some time
since it was FREE and comprehensive software.

All in all is wa OK, then came the latest update, that's when all hell broke
out.
-Anything Flash stopped working,
-the sidebar gadgets become distorted and unviewable,
-If I turned off UAC the whole system had a seizure
-With UAC on I couldn't actually do anything
-Control Panel took 10 seconds plus just to open up and twice that to populate
-And I couldn't even access the McAfee security center to adjust it

So, of course, I installed the thing. Too late, the damage was done and I
spent a day getting my system back to normal which required a System Restore
back to pre-McAfee and the reinstall of nearly all my drivers and 1/3 of my
software, which I could only do after I used HP's recovery to get the
computer 'back to factory' condition (this ended up erasing all personal
items, which I luckily had backed-up on DVD).

Norton IS 2007 that came as trail-ware with the system was slow, but at
least it was stable and intrusive.

I hate you McAfee!