There are 3 types of SD formatting, FAT16, FAT32 and NTFS. I don't know what a Go910 prefers but it's probably FAT32 which can be selected in Windows -right click on the drive letter, select format and it's in a drop down list. You'll lose all data on the card when you format. You could check the original card's type of format by right clicking on its drive letter, select Properties and it's shown in that window.