[utw-Mephisto]

I need more disk space for some Parallel installations.

Is it possible to either

Shrink the Windows Partition and extend the Mac partition

or

Shrink the Windows Partition and reinstall Mac OS X but keep Windows and extend the Mac partition during install

or

not possible at all ?

[mfbernstein]

Problem is that there are two partitioning schemes on your system: MBR and GPT. You can only resize the Windows partition (non-destructively) with a Windows app like Partition Magic, which will alter the MBR table, but knows nothing about GPT. In theory, if you use the GPT tool, from the EFI firmware, you can then resize the Windows partition in the GPT firmware as well, and so then expand the Mac partition. I've never seen this work in practice though.

It might be easier to see if you backup the Windows partition via Ghost, remove the Windows partition, expand the Mac one, and then restore from your Windows backup. Not sure exactly which apps you'd need though.

[utw-Mephisto]

That is actually what I just did ... making backups of the Windows apps and reinstall the whole thing ... I figured even if there are ways, they won't be easy .. since I am using a unattended Windows XP CD I have created for our company, its not so much hassle anyway ... I would have prefered a two click solution, but that won't be it anyway, so I wiped it at the end .. thanks though for the explanation since I did not take the GPT into consideration so at the end I probably would have screwed up my system either way ...