Thanks for the link, but I don't think that will work in my case. For one, I don't have a USB drive large enough to hold all the files, but more importantly, all the install files are on a partition of my C drive and I don't know how to access them, so I don't know how I'd move them to the USB drive.
I know that with the way it's set up right now, I don't need to do the USB thing. When we first installed 7 Pro, we considered doing the install via USB, but decided to just create a partition to store the install files and boot from. I know it can be done that way again, but I just need 1) to know how to access the files on the partition with the install files, and 2) remove 7 Pro from my system so I can reinstall it via the files on the install partition.
In other words, I just need to know how to remove 7 Pro without losing the install files that are on my C drive so that I can use them to reinstall Windows.
Again, thanks for the link, but I don't think that's going to help me in this case.