I have lightroom for desktop 5.3 installed and have just about given up on searching for the thousands of missing files. Were I to find a way to perform a global search on a drive - down through the folders - for a missing file, I could work this out. Unfortunately, it appears my version of LR does not allow that (although I saw this performed in youtube video, but on a mac, and with a different version of LR, or so I gather from the interface). If I subscribe to the cloud-based version, what will happen? Files are everywhere over several drives in my computer. And some folders have been renamed, etc. I'm assuming that subscribing will be of little use in locating these files but as I'm totally in the dark as to how the images in my folders in the desktop version sync with the cloud based version, asking here. Also, seems there is a downloadable subscription version, which makes it all the more confusing. Any help appreciated.