For geeks out there like me who keep an up-to-date bootable Windows XP cd with unattended setup and all hotfixes and service packs applied... 

[MSFN]

As we promised last week, we've got up a guide on how to slipstream the Update Rollup into Windows XP SP1. The Update Rollup went final today, and covers all of the critical updates listed on Windows Update since the release of Service Pack 1 until September 2003.

For this guide you will need the following:

• Windows XP Home/Pro with Service Pack 1 Slipstreamed
  
• Update Rollup 1 (KB826939)
  
• CDImage for Windows XP Home / Windows XP Professional

You will find the appropriate links to some of the above in the guide.

Update: You can now get Windows XP Setup to install the rest of the hotfixes shown on Windows Update that the Update Rollup doesn't cover. Remember, this is optional and isn't slipstreamed, so you don't have to do it if you don't want to! The link has been added below.

View: Slipstreaming the Update Rollup 1 into Windows XP SP1
View: Installing the rest of the Windows Update Patches (Optional)