the memry card is write-protected

Hello boys and girls,

I am using SD library to store values of soma sensors.
The strange is that I cannot format or delete any file of the SD card when it is connected to my PC.
Message using SDFormatter "the memry card is write-protected".

Please advice how to remove the write proteced.

Thanks
Nikos

Make sure the lock "button" on the SD card isn't set.

It is not locked...
I am using microSD and adaptor to SD.
The button locked is OFF

last time that had happend to me the card had died
was a new card & got replaced but …

power fail during a write will kill some cards