How to get hidden pictures off my SD card onto my computer?

I have pictures on my SD card that I need help retrieving.

I already have the SD card in a multi-card slot, but unfortunately my computer doesn't have a spot to insert a card so the only way I can connect the SD card is by putting the multi-card, with the SD card, in my camera and connecting it to my computer with a cord.

Also, I have an iPhone so I can't use the SD card with my phone.

Have you tried calling tech support?
Sometimes I quick call to them will help.

When you plug your cam into your pc, you should see it in computer or my computer. Just open it.

My option is for windows. Go to the specifie folder and then in the upper left corner click "Organize">Folder and search options>View> show Hidden files.
Did it work?