Some Help with old USB Pen

[Paulkat123]

I've got 3 old usb pens (about 5 years) it was a thing where you could just plug a cable into it and use as storage. I decided to pull them out and see what was on them. All 3 are saying 'USB device not recognised) when I plug them in. I can imagine one is faulty but hard to believe all 3 are. I have tried all the normal advice online such as resetting USB options in device manager etc. Also tried them on another (NEW) computer and same result. The last time I used them was probably on a pre windows 10 computer. about 5 years ago . Could it be just a file system thing? I feel that if I found an old windows computer and plugged them in they would simply work, any ideas? They don't appear in file explorer or disk management. Thanks in advance.

[Lardman]

They decay over time which is probably the most likely cause, the odd one is corrosion on joints and contacts but usually not a problem if they've just been in a drawer or similar. Open the card with a hex editor and see if there's any data if so try carving otherwise we usually get something back with chipoff.

[Paulkat123]

Thanks for your help

[Arch Stanton]

I'd say first thing is determine if they're correctly detected:

diskmansd.png (68.3 KiB) Viewed 3987 times

This has little to do with the Windows version.