TS01_2309A_64bit_9310.exe (naming may vary slightly by region).
The most reliable source for your specific model is the official Toshiba support portal. TS01_2309A_64bit_9310
: Visit the Toshiba Drivers & Utilities page and enter " e-STUDIO2309A TS01_2309A_64bit_9310
Follow these steps to avoid the “driver not signed” or “device not found” errors: TS01_2309A_64bit_9310