I've found this site to be of great interest.

http://www.webtree.ca/windowsxp/repair_xp.htm

And here are some of the links that can be found on this site!

Windows Update Site Problems
How To Access Safe Mode
How To Access Last Known Good Config
How To Create a Boot Disk to Start Windows XP
How To Fix The Cryptographic Service Error
System Cannot Access CD-Rom, CD-Recorder or DVD Devices
Error Messages After Removing Easy CD Creator from XP
SFC (System File Checker) has a problem running
How to log on to Windows XP if you forget your password
How To Take Ownership of a File or Folder
How To Access Recovery Console
How To Create a Set of Emergency Floppies
How To Repair Boot sector
How To Format
How To Partition
How To Run a Repair Install
How To Uncover Windows XP Product Key
How To Change The Product ID
A better boot diskette for WinNT/2000/XP
Has XP Been Activated?
NTFS Reader for DOS
Known Issues with Windows XP Service Pack 1
AIDA32
Tweaks&Fixes
NTBackup Is Missing From My OEM version of XP
Knoppix

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