Modern versions of Sigil (2.0.0 and later) specifically require Windows 10 (version 1809) or newer and are only provided for 64-bit (x64) architectures. How to Install Sigil on Windows 10
To ensure you have a secure and updated version, you should always download Sigil from its official channels.
The installation process is straightforward, but there are a few tips to ensure it runs smoothly: