Windows XP needs relevant package to support exFAT. Please download the package from the following link.
http://support.microsoft.com/kb/955704/
You can not format StoreJet to exFAT file system under windows XP OS before completing installing the package.
![](/Support/FAQ/FAQPics/SJFAQ_exFAT_EN_pic1.jpg)
You can now format StoreJet to exFAT file system.
![](/Support/FAQ/FAQPics/SJFAQ_exFAT_EX_pic2.jpg)
Please refer to the following link for more information about common operating systems and their supported file systems.
http://www.transcend-info.com/Support/FAQ-614