I bought a Kingston Digital 16 GB microSDHC Class 10 UHS-1 Memory Card 30MB/s with Adapter (SDC10/16GB), http://www.amazon.com/gp/product/B0036V9AGU?psc=1&redirect=true&ref_=oh_aui_search_detailpage, a little over a year ago, and it suddenly stopped working. Both of the phones I tried it in don't even show that it has been inserted. My Windows 7 computer shows that the adapter (sold with the card) is plugged in because it shows up under "Disk Drives" in the Device Manager, but it doesn't act like the micro SD is in the adapter. I cannot even assign it a drive name as pasted below from http://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/windows-7-not-recognizing-sd-card-in-device/a24fc1c8-6d06-4506-a65b-402d5b0e56ce?auth=1.
"Right click on My Computer, select Manage. On the following screen, click on Disk Management. You should now see the flash card drive on the right hand side of the screen, assign it a drive letter, and voila, it should now show up in Windows Explorer."
Does anyone have any suggestions for recovering data if the card even fails to mount?