I can't provide an answer with a simple statement that Portable external drives doesn't show up.
First, you computer specs would be helpful
How are they attached to the computer?
Do you receive any error messages and if so, please give the exact error message.
Have you checked Device Manager and looked for any entries with a yellow flag beside it?
I read somewhere that on the Y cable
Try going to Start > Run, and type diskmgmt.msc and see if it's are listed here and has been assigned a drive letter.
I'm confused about this line:
What is the make and model of this device?
This is a Y cable. Mine is all black (maybe it's called something else)
I know what the larger cable is, but how do the other two cables differ?
I can't understand why the 200MB partition has a drive letter. It normally does not.
Check this website for more details about that:
How to Avoid 200MB Hidden System Partition From Been Created During Windows 7 Installation Ã‚Â» My Digital Life
Is this the official RC release from MS?
Did you previously have a beta installed and did you perform an upgrade, or is this a a \"clean\" install?
What I assume this to be is a result of me not cleaning the drive of all remnants of the past install. But I don't know for sure.
If you said you did a "clean" install, there should be no references to the previous build.