Tweak XP 

Right Click My Computer >Properties >System Restore Tab >Settings
>Slide to Minimum (200MB) >OK 

>Auto Updates Tab >Turn Off Auto Updates
>Apply >OK 

>Remote Tab >Uncheck Remote Asisstance and Remote Desktop
>Apply >OK

Start >Control Panel >Admin Tools >Services >Automatic Updates
>Startup Type >Change to Disabled >Service Status >Click Stop 
>Apply >OK

>Error Reporting >Startup Type >Change to Disabled >Service Status >Click Stop 
>Apply >OK

>Messenger >Startup Type >Change to Disabled >Service Status >Click Stop 
>Apply >OK

>Remote Desktop Help >Startup Type >Change to Disabled >Service Status
>Click Stop >Apply >OK

>Remote Registry >Startup Type >Change to Disabled >Service Status 
>Click Stop >Apply >OK

>Task Scheduler >Startup Type >Change to Disabled >Service Status 
>Click Stop >Apply >OK

>Telnet >Startup Type >Change to Disabled >Service Status 
>Click Stop >Apply >OK

Start >Control Panel >Network Connections >Right Click Connection
>Advanced >Checkmark Protect my computer by limiting or preventing 
access to this computer from the Internet >OK