Why do (swear words) computers go wrong?

Yes that’s an old floppy disc… Yes my pc used to run them. Yes it’s old. But it’s normally fine. Then tonight? I need to download photos for my report and instead I just get a black square. A bit like a blank floppy disc with a – and an X in one corner. No I made to transfer to my photo files! I’m ready to scream. I have just restarted my computer and run a virus scan. If that doesn’t work I will be having words with the local computer repair people. Maybe it’s just a glitch!