What computer operating system is involved?
You cannot move, delete, or rename files and folders that were imported into a project after the project has been saved closed. When you import your files into Premiere Elements, all you get are copies of the originals which remain at their hard drive save location. But, the project's copies need to trace back to those originals where they were when they were first imported into the project.
Your primary line of recovery from this situation is to use those "Where is the file _____?" messages, one by one, responding with the known location of the specifically named file being asked for. Under certain circumstances, responding to one or two of those messages will trigger the rest to reconnect automatically. But, for the most part, you have to give each message what it is asking for.
Also, you could click on Skip All in the first "Where is the file _______?" to open to the project workspace and gauge the situation from that angle (see what has the colorful media offline displays).
Please consider, and let us know the outcome. If you have questions or need clarification on the above, please do not hesitate to ask.
I received help with Adobe Premiere Elements Help/Working with offline files which described the required steps similar to what you described, but your explanation is more detailed. Thank you.
I'm working on a Windows 7 OS.
Thanks for the reply.
Media can also get disconnected from its project if you have stored the source media on an external hard drive and that drive malfunctions (maybe changed drive letter for some reason).
When archiving a project, please consider the program's File Menu/Project Archive and its Copy Project Option.
Please update us on your progress as your schedule permits.