: Most modern operating systems (Windows 10, Windows 11, and macOS) do not require specific drivers for external hard drives like the HD-E1. They utilize generic USB Mass Storage drivers built into the OS. Discontinued Software : Previously available utility software—such as Data Transfer Accelerator Backup Manager Password Protection Manager —is also affected by the download termination. Official Resources
Visit the official Sony eSupport archive (Wayback Machine recommended) or trusted legacy firmware repositories like: Sony Hd-e1 Driver Download