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BACKUP the memory card
Be sure to make a BACKUP the memory card
Micro SD memory card 
1. If you have a Windows computer with more than 32 GB disk space
install Win32Diskmanager
It can make an image of the microSD card
Remove the microSD from the computer
place in a USB card reader and plug in to Windows computer
Use Win32Diskmanager to copy to the hard drive
To make a new card, install a blank microSD in the USB reader
and copy the .img file that you saved to the card.
Different cards may be smaller in size and will not copy.
Make as many copies as you desire.
2. You can use the linux computer to backup
It has a diskcopy program.
Insert a blank microSD card into a USB adapter
plug it in to the USB port
Run the diskcopy program
3. You can use the DD program to copy with a linux machine
- need command line here <ref>
Store pictures, files, software
Make as many copies of the micro SD card as you like.
It is open source.
