Unfortunately I disagree with Ken, Will and Carey. While XP does a much
better job at handling the registry than previous OS's it to can become
bloated with useless entries left over from adding and removing programs.
These can sometimes cause issues when trying to install software. I have had
XP Home Edition since it's release over 3 years ago and have always used JV16
power tools. The registry cleaner in here is effective and effecient and has
never caused any problems for me or the system in all the years and thousands
of application installs, tests, and removals. JV16 is now an application that
you have to purchase but there are some sites that carry the older free
versions for download. While I do know of system that have been rendered
useless by some of the utilities in Norton System Works, like the disk
doctor, I have never known of anyone with problems linked to JV16 power tools
and the RegClean v4.3 based on JV16.