Ill answer this one.

First i have installed and ran it with windows multiple times (for a while i dual booted with alot of OSs...well 3 anyway cant go past 4 on one HD) anyway these easy to use steps should help you out:

1. RTFM!!!!!!!!!!!!! you wouldnt even have to ask if you wouldv done this one, but oh well im a helpful person.

2. RTFM page on dual booting with Windows, also search the forums for dula booting and look it up on google if you cant find TFM to read it. Its described in detail and step by step.

3. go to the mandrake home page, there are alot of resources there too.

4. before you install, BACK UP YOUR HD. Also to the defrag as suggested.

5. RTFM again and then follow along while your doing it.