Question: how to copy data from memory card to computer using cmd?
Answer: Step 1 – Insert your memory card to card reader and connect it to your PC.
Step 2 – On your PC, click START>Run. ... 
Step 3 – New command window will open. ... 
For example – If your memory card displays as E: Drive, then you must enter the command – “CHKDSK E: /r”.