can't save with no$gba

i can't save a game with no$gba.will someone help me and teach me how to save?

go to the .ini settings in the root folder.....change something called save file (i think) (the setting says Compressed) change it to uncompressed........in the emulation settings change NDS save type to FLASH 512 and POOF you can save games

may i know where is the root folder and .ini file??i'm a beginner at this thing

the root folder what you see when you double-click the drive letter in my computer.

sorry i still can't find it in "My Computer."there's no root folder at all.

the root folder is just the main folder that opens when you open a drive.