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It presumes nothing except a working Windows machine with internet access.
Cygwin
- Download the www.cygwin.com/setup.exe from the www.cygwin.com.
- Double-click on it.
- Click Next.
- Select Install from Internet.
- Click Next.
- Enter your preferred Root Directory.
- Click Next.
- Enter your preferred Local Package Directory, which can be the same as the Root Directory.