I have my HD partitioned into three. I was incresing the size of my OS part (C:)when the power failed. After reboot Partition Magic can still see the three parts, but Windows can only see two, C: & E: THe other part is no longer labelled but is called BC7640E4-55FC-11DD-B34C-0030187BADAF which looks like a registry entry to me. Can any one help me get Windows to see the missing part without formatting? All my photos and music are on that part and not all of it is backed up. Thanks ps. don't suppose System Restore would sort it?