I erased all the files on my memory card and when i put it in my camera it says the card is still full

Solution overview: You need to "clean" the SD card by using the clean command in Diskpart and then format the card in Disk Management. This solution will show you how to accomplish this.

1. Plug the SD Card into the computer.

2. Press Win+R to open the Run command.
3. Type "cmd" into the dialog box and press enter to open a command prompt.

4. Type "Diskpart" into the command line of the command prompt to start Diskpart. Wait for Diskpart to load.
5. Type "List Disk" and press enter.
6. Take note of the number of the disk that's associated with your SD card.
7. Type "Select Disk X" where X = the number of the disk that's associated with your SD card and press enter. Make sure the command prompt reports that Disk X is selected.
8. Type "Clean" or "Clean all" and press enter. Clean will be faster but might not solve your problem. If using the clean command doesn't solve your problem, then repeat steps 1-8 and type "Clean all".
9. Wait for Diskpart to complete the cleaning operation - this may take some time so wait until it's completed!
10. Close command prompt.

11. Press Win+R to open the Run command.
12. Type "DISKMGMT.MSC" into the dialog box and press enter. Wait for Disk Manager to load.

13. In Disk Manager, scroll down and select the SD Card.
14. Right click and select "New Simple Volume".
15. Select Next, Assign Drive Letter, and select "Next" again.
16. Select "FAT32" for File System and "Default" for Allocation Unit Size. Fill in whatever you want for the Volume Label. Make sure "Perform quick format" is checked and click OK.
17. Wait for formatting to complete and remove SD card from computer.

18. Plug SD card into camera to see if the problem is solved.

Good luck and thanks for using FixYa. Post back if you have any questions or problems.