I have one SD card with problem. When I insert the SD card, using an idaptor, Windows does sense it and installs the drivers successfully, but the SD card does not appear in Disk Management, Device manager or Windows explorer. Any idea what the problem is ?

Thanks

Hi, a number of possibilities.

BTW, does the card work when inserted in a recent laptop or newer card reader? Or it doesnt work anywhere?

1- The adapter does not support SDHC (Secure Digital High Capacity) and the card is SDHC (you havent specified what card it is, so a guess).
2- The card has a controller firmware issue, and the controller is detected but the card cannot be understood properly by windows.
3- The card is physically faulty, broken traces, solder of chip broken, resistor or capacitor or other discreets faulty
4- The data on the card is corrupted in such a way that when Windows tries to read it, it crashes the programming logic
5- The blocks that are available for bad blocks to be remapped to are all gone, various devices handle\dont handle this in various ways
6- The card is totally full of data, some cards cannot function if all available space is used(Rare)
7- An actual bug in the cards circuit/firmware/controller (fairly rare)

In order, I am going to lean towards 2,1,3,4

If you want data recovered, then PM me as I am pretty certain I can recover. I would not insert the card into any machine if you want data recovered, and give it to a flash recoverer

regards

Thank you HaQue,

The customer is not serious about the data, he has quite a low budget. I returned the SD card.