XP SP3 Failed Install

[Bearcat, Bc]

XP Home SP3 download through auto update failed to install today after over
3 hours of not responding. Fortunately the roll back to SP2 worked after
another 2 hours. Is SP3 really necessary? I guess the first indication that
I should not have tried the install was the message to back up all files on
my computer which I did. What's the scope with SP3?
Thanks,
Bc

 

[Leonard Grey]

"Information About Windows XP Service Pack 3"
http://support.microsoft.com/kb/936929

 

[Bearcat, Bc]

Thanks for your help. Did not know any firewalls must be disabled. It
installed in 30 minutes after disabling.
Bc