How to Fully Erase Windows & Clean Disk From Remnants: Post-Installation Dual Boot Issues

Formatting a drive?

Hello

It's best if you boot your computer from the Windows CD and read what it says there. And it will write during startup, among other things, that there is already windows on the disk. From this moment, read what he writes because you can choose a new installation, the disk on which the system is to be and formatting (full or quick).

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greetings

Are you, tomek40, sure that these are "leftovers of the old", and not just redundant path in boot.ini? - Start with this item.
Edit the file and remove the redundant entry: My Computer - Advanced - Startup and Recovery - Startup - Edit.

When installing a new system, you always have the option to install on the current disk, partitions, or to create new partitions, there is also the option of a full or quick format.

On the active partition, usually C, there is a boot.ini file (for xp, not for vista, win7) it should be edited in such a way that it contains only the system you are interested in:

In your case there will be two entries in this line, therefore you have a system select menu, delete that entry which system you don't want.

If you have vista, win7 you need to use a special program, because from what I remember there is no such editing option as in earlier systems.