Some Epson packages attempt to download firmware updates during installation. This can break air-gapped or restricted networks. Use:

epskitx64.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /NOFIRMWARE=1

On 64-bit Windows, ensure you are not accidentally invoking the 32-bit SysWOW64 command prompt. Run your script from:

Silent installation means the installer runs without interactive prompts. The approach depends on the installer technology packaged inside epskitx64.exe. Common installer engines include:

Determining the contained installer type is the first step because the precise silent switches vary.