If prompted by Windows User Account Control (UAC), click to grant administrative permissions.
Follow the on-screen prompts of the installation wizard. Accept the license agreement.
Do not use Windows Update. Always use the "Have Disk" method as described above. If the driver still fails, download the Toshiba Universal Print Driver and repeat the "Have Disk" process.
Complete Guide to Downloading and Installing Toshiba e-Studio 181 Printer Drivers