In part 1 of this series, I explained why it’s a good idea to have separate accounts on your computer: a standard account for day to day stuff (e.g. reading email), and an administrator account for making system changes (e.g. installing new software).
In this part, I’m going to provide step by step instructions for setting this up on Windows XP. (The process is pretty similar for other versions of Windows.) There are lots of pictures here, to make it as simple as possible. This all applies to a home computer; it’s a bit different for a workplace, since all the accounts will be set up centrally by your IT department, and by default they will just be standard users on each PC.