This article from PC World is pretty thorough:
http://www.pcworld.com/howto/article/0,aid,97442,00.asp
Easy cleaner is an excellent utility for removing unnecessary files:
http://www.pcworld.com/howto/article/0,aid,97442,00.asp

Becky wrote:

>I bought a used Compaq laptop. It did not come with a recovery disk. It came
>loaded with Windows XP Professional and MS Office with Frontpage.  I keep
>getting messages that my C drive is nearly full. When I go to My Computer it
>shows that I have a capacity of 11.2 G and used space of 10.9 G.  However,
>when I go to Add/Remove programs I have a TOTAL of 246.56 MB in programs
>installed.  How can I find out what is taking up all the room on the C drive
>and what can I do to get the space back if I can't see what is using the
>space????
>
>
>

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