Q: Will updating my Toshiba firmware erase my data? A: It's unlikely that updating your Toshiba firmware will erase your data, but it's always recommended to backup your important data before updating the firmware.
Select or UEFI: USB Drive .
Now, you must boot your target computer from the USB, not the internal hard drive. toshiba firmware update usb
After reboot:
Insert USB into Toshiba device.