I would like to download Fuchsia's source code.
I entered curl -s "https://fuchsia.googlesource.com/fuchsia/+/HEAD/scripts/bootstrap?format=TEXT" | base64 --decode | bash that I found on fuchsia.dev.
I got ''base64'' is not recognized as an internal or external command, operable program or batch file.
I downloaded base64 tools without success.
What should I do to make this command work?
You won't be able to build fuchsia from Windows directly. Most people use the Windows Subsystem For Linux to get a Linux-like environment, and that should work.
On top of the download script, fuchsia ships with a bunch of prebuilts, which are only built for linux and mac.