Let me clarify a few things.... DO NOT EVER erase and use back track as a main OS... You will LOOSE ur windows......
Now, if you tell me all about your system, I will tell you step by step how to dual boot and keep your windows OS without incedent..
there is no such thing as TO MUCH information to give... the more you give me the more I can be of service to you.
I need to know:
Type of computer
CPU type and CPU Speed
give me this all this info, and i will tell you step by step how to install them side by side and not harm your main OS and you will retain the choice at start-up to which system to boot.
Also, which BT did you download? also, is your main system a 32 or 64 bit system? Which ever it is, will be the same for the Backtrack you need to download... So if your system is a 64 bit Windows, so should be Backtrack.
I suggest to have BT 5 R3, 64-bit Gnome (or 32-bit if its what ur system is)
Make sure to answer these and I will tell you.
I would suggest to use a USB to install BT to your HD. If you have a 4GB USB flash card, let me know and I will tell you the fastest and safest way to install it.
Note: You can burn it to a disc also and install it. It all ends up being the same, but its just the media used to install is a little different.
If its a cd, then you'll have to hit F2 to get to your boot option so you can change the boot menu so it reads the CD first or change it to USB to get it to boot from USB first.
e-mail me personally and I will respond as fast as I can tonight to help you out.