The free version of Turbo C is available on CProgrammingExpert.com and TechApple.net. To download the software from CProgrammingExpert.com, go to the website, and click Turbo C++ IDE on the left sidebar. Once there, click the Free Download icon to download the Turbo C software.
To download Turbo C from TechApple.net, go to the website, enter "Turbo C" in the search box at the right-hand side of the page, and click the Search button. In the search results page, click the link for Turbo C/C++ For Windows 7, and then click the download link at the bottom of the page. This software is compatible with Windows XP, 7, 8.1 and 10.