Combining two partitions into one

[Bry89]

Yesterday, I felt that I wanted to extend the hard drive size (as it was nearly full to my shock) for the Windows XP guest I have which I have done, where I have doubled the size of it but that's only for the VDI itself (from 7.99GB to 14.65GB). Then, I found out about GParted in order to work with the unallocated partition that's been created and even though I had no idea what to do with it, I had managed to make that both an extended and an NTFS partition where it was done successfully, though at first I was uncertain if this would get what I want. However, upon loading the guest, I see that the extra partition has been made into a separate hard drive that is of 6.99GB but that's not what I want. My question is this... is there a way for these two partitions to be combined, so that Drive C: is of the doubled size I want? I hope it's possible.

EDIT: Changed the thread title to something more specific, and if this is in the wrong section, please move it.

[mpack]

I think you must have been misunderstanding what gparted told you. There is no such thing as an "unallocated partition". The disk space has either been allocated to a partition, or it's unallocated.

So in fact you don't want to combine two partitions, you just want to enlarge one existing partition - which in GParted you do by grabbing the partitions right edge and drag all the way to the right, into the unallocated territory.

And yes, 8GB was too small for XP, as is 16GB really. I find a 32GB primary disk to be a nice size for a light-use XP VM.

[Bry89]

Yeah, I must've misunderstood it. Well, I've done that and it has solved my problem. Thanks again