
You can leave it on the SD card if you wishBackup SysNAND - So after it says to do this >
- old arm9loaderhax NAND backup with this new boot9strap one --- do i have delete this off the sd card before i can make a new backup as ive still got the a old arm 9 nand backup folder
- on my sd card
and do i have to
- Delete <serialnumber>_nandmin_###.bin from the /gm9/out/ folder on your SD card after ive saved it on my pc
or can i just leave it on the sd card as well as save it on my pc
thanks

Check the files it tells you to put on your SD card. Specifically secret_sector.bin:what does this mean ?
sighaxed FIRm not installed
secret sector - file not found
Note that, only on New 3DS, secret_sector.bin is needed to revert the arm9loaderhax exploit, which is why it is not needed for the installation of boot9strap on a stock console. If you do not have a New 3DS, you do not need secret_sector.bin.

System Settings in the same way as games.all done
by the way how do i delete the old luma picture on the 3ds
as ive now got 2

Actually, you can also try going into installed titles in FBI and checking the authors for each version.how do i tell the diffence as they both have the same picture