HELP to open one Flash Pen

PFMarconi

Reputable
Jan 21, 2016
1
0
4,510
I have three Flash Pens but only two are opening, despite them all being put into the same USB point.

The third FP just brings up the message "Please insert a disc into (D)"

I desperately need to open this one so would be very grateful for advice on how to do so.

Thanks
PFM