Is that how you make a macOS Sierra USB drive in Windows?

There’s instructions to make your own hfs file here. To use with BootDiskUtility. I have to download macOS Sierra again, I didn’t copy the file anywhere when I restored my backup.

I don’t remember if I opened the InstallESD.dmg file.

Doesn’t work with macOS Sierra. They changed what’s in InstallESD.dmg. Now you need a Mac to make the thumb drive.