When I put my memory card into my computer-nothing happens. It has photos on it, but my computer is not automatically promping me

ALTERNATE WAY TO TRANSFER PHOTOS TO COMPUTER
If your photos are stored on the memory card, then remove the memory card from the camera and insert it into an USB memory card reader. Connect this USB memory card reader and memory card into the USB port of your working computer. Your computer will see this as an USB Mass Storage Device or an external storage device; you can then open the folder on the memory card and copy the photos to your computer. Memory card reader is a handy device and is inexpensive. You can copy photos from other cameras and you can also download photos off your memory card to someone else's computer without the need of installing any programs.

ALTERNATE WAY TO TRANSFER PHOTOS TO COMPUTER
If your photos are stored on the memory card, then remove the memory card from the camera and insert it into an USB memory card reader. Connect this USB memory card reader and memory card into the USB port of your working computer. Your computer will see this as an USB Mass Storage Device or an external storage device; you can then open the folder on the memory card and copy the photos to your computer. Memory card reader is a handy device and is inexpensive. You can copy photos from other cameras and you can also download photos off your memory card to someone else's computer without the need of installing any programs.

ALTERNATE WAY TO TRANSFER PHOTOS TO COMPUTER
If your photos are stored on the memory card, then remove the memory card from the camera and insert it into an USB memory card reader. Connect this USB memory card reader and memory card into the USB port of your working computer. Your computer will see this as an USB Mass Storage Device or an external storage device; you can then open the folder on the memory card and copy the photos to your computer. Memory card reader is a handy device and is inexpensive. You can copy photos from other cameras and you can also download photos off your memory card to someone else's computer without the need of installing any programs.

ALTERNATE WAY TO TRANSFER PHOTOS TO COMPUTER
If your photos are stored on the memory card, then removethe memory card from the camera and insert it into an USB memory card reader.Connect this USB memory card reader and memory card into the USB port of yourworking computer. Your computer will see this as an USB Mass Storage Device oran external storage device; you can then open the folder on the memory card andcopy the photos to your computer.Memory card reader is a handy device and is inexpensive. Youcan copy photos from other cameras and you can also download photos off yourmemory card to someone else's computer without the need of installing anyprograms.

Try a different card reader

You can recover deleted pictures with steps below

1. Do not save any new file to memory card.
2. Connect your card to computer. You should see memory card shown as a drive letter (like H:) in My Computer.
3. Download a picture recovery software, recommended one is asoftech photo recovery (simply because i was using it and it worked)
http://www.facebook.com/pages/Asoftech-Photo-Recovery/126127714100611?sk=info
4. Install and open the photo recovery program, select your memory drive, and click 'Start' button to start scanning process which will find your deleted photos.

The camera will need to be plugged in and turned on for you to be able to transfer pictures from it.
Plugging the camera in will not make anything special happen on its own-- if you are using Windows (after the camera is plugged in, turned on, and with your memory card still in the camera), try opening "My Computer" and looking for the camera's icon within that window. The camera (and the photos on the memory card inside) will be shown just as any other CD or jump drive that you would plug into your computer. You can copy photos off of the camera by double clicking the camera's icon, (probably opening the DCIM folder) and dragging and dropping the image files onto some other location on your computer.

Go into your camera,select settings (the gear icon) then go to the others tab, then select "save to" then choose memory card and that will automatically save all pics to the memory card automatically

make sure the little togle is set to the write possition

This can happen when the card is removed when Windows is still accessing it. Even when you think you are not doing something, Windows could be. I am 99% certain there is nothing malicious on your system and the cause was early ejection.

To prevent this from happening next time, before removing the SD card try using the "Safely Remove Hardware" tray icon to safely remove your device. TIP: Do not remove any storage device (i.e. SD Card, Flash drive, etc.) if the light is blinking.

Happy computing!