Hello thank you for replying!
I had this error because my usb card reader is a multi-reader and I had misplaced my SD card.
Though I can see it in disk management "Not partitioned". So, I try to hit right click and make a new volume.
"The device is not ready"...
Try to format it, "The device is not ready".
I 'm not sure if the post you linked me helped me... Still my windows won't access the disk.
I only want my files...
Recuva still doesnt recognize my card...
WIN 7 ULTIMATE EN, AMD Dual-Core A4-6320, 3.8GHz (Turbo 4GHz), MB: ASUSTeK COMPUTER INC. A55BM-E Rev X.0x, DDR3 SIN 1333 4GB, AMD Radeon HD 8370D, Realtek High Definition Audio,
Seagate ST500DM002-1BD142 500GB