A photo is locked on my screen after uploading from my disc.

Sounds like the secondary screen window (normally used if you have two screens) is covering the main window. Press Ctrl-F11 on a PC or Cmd-F11 on a Mac. If you see the menu bar, then you can also do this from there.

Just a guess, because that’s a very brief description. Press F11 and see if that helps. If that doesn’t help, please include a screen capture of what you see (by clicking on the “Insert Image” icon; do NOT attach files).

LRC? Are you referring to Lightroom Classic? 

This is the InDesign forum. Is this an InDesign question?

If it is, we need more detail to help.