It seems that there are no specific discussions on the Windows Forum regarding installation issues with Epson Perfection 4990 scanner drivers under the 64-bit version. If you are facing this problem, one common solution that often helps with driver installation issues is to check the following: 1. Official Website: Visit the official Epson website to ensure you are downloading the correct drivers specifically designed for the 64-bit version of your operating system. 2. Compatibility Mode: Try running the installer in compatibility mode. Right-click on the installer file, go to Properties, navigate to the Compatibility tab, and select compatibility mode for a previous version of Windows. 3. Device Manager: You can also...