Cygwin does not provide a single "all-in-one" offline installer file because its package repository is several gigabytes in size. Instead, you create your own by using the standard setup executable to pre-download the necessary packages onto a machine with internet access. 1. Download the Base Setup Executable

Choose a download site. Popular mirrors include Kernel.org.

Run the setup-x86_64.exe file you just downloaded.

Once you have the downloaded repository and the setup-x86_64.exe file, move them to the offline computer via a USB drive or external hard disk. Where can I download an offline installer of Cygwin?

Pick the tools you need. Common choices for developers include gcc , make , git , and python .