My new computer came with the 32-bit version of Vista installed. I wanted to switch to the 64-bit version, but I wanted to test it first before deleting the 32 install. So I created a partition on the hard drive and installed Vista 64 there. It's working great, and I'm going to stick with it and delete the Vista 32 partition and merge them back into one. Unfortunately, Vista won't let me format or delete that partition. What do I need to do to delete the Vista 32 partition and merge them into one?