Sandisk card won't let me download to computer

I have just gotten a Sandisk card and when I put it into the card slot… the light comes on but nothing happens on my computer… any help appreciate

Are you using a card reader? Maybe it’s bad.

What size is the card? If it’s over 2GB, it’s SDHC format. Maybe your card reader is old & doesn’t support that newer format, or your computer needs a Windows update to recognize it.

Try to use your camera as a means of reader.

Computer (with internal card reader) or digital camera fails to read 4GB, 8GB, 16GB, or 32GB SDHC card