Full install with NIS 2009.5 patch

Can NIS 2009.5 patch (NAV/NIS 2009.5 Patch Update)  be used to do a full re-install of NIS 2009?  I have a speed access problem and I have unistalled NIS, Live Update, LiveReg and ran the Norton removal tool in attempt to clear this speed problem.    Upload access speed is limited to < 25 Kbp/s with NIS active and averages@ 230 Kbp/s without NIS.  I have 7 MEG DSL service.

 

Here is a summary of the problem I seem to have:  Norton Internet Security 2009 access speeds and updates

 

BTW:  Since I used the NIS 2008.5 patch for my full NIS 2009 re-install, I do not a LiveUpdate and LiveReg entry in my Windows XP PRo SP3 Control Panel --> Add / Remove Porgrams.