How do I delete data from another partition in windows vista?

[OhLiam]

You can't do it, it won't let you, and I haven't found a way around it for ages...

So I have about 40GB going to waste? that sucks.

[Wolverhampton]

I don't know, there has to be a fix for it, somewhere...

[Turbocom]

It's not to waste, just make a partition using that space