Just carry the installer on your USB drive. On each Windows 10 PC:
Would you like the direct official download link for the Toshiba e-Studio 2303A Windows 10 driver (I can guide you to the exact region page), or help with silent installation (for IT deployment)? toshiba e studio 2303a driver windows 10 portable
The e Studio 2303A is not just a printer—it’s a scanner. On a portable Windows 10, TWAIN or WIA scanning often fails because the scanning software relies on registry paths that change. Just carry the installer on your USB drive
Do not waste time searching for “Toshiba e-STUDIO 2303A portable driver.” Download the official driver from Toshiba’s website and install it normally on each Windows 10 PC you use. If you truly need portability, carry the installer on a USB and run it per machine (with admin rights). Would you like the direct official download link
Here is the content regarding the Toshiba e-Studio 2303a driver for Windows 10, specifically addressing the concept of a "portable" version.