Turbo C is a compiler, integrated development environment and computer language from Borland. It is now outdated and not used anywhere professionally. But some schools and colleges still teach it to introduce students to the computer language. This compiler works with Windows XP (x86) and older Windows operating systems. To get it working on Windows 7 and later operating systems, please see this separate post: Turbo C For Latest Operating Systems
To download and install it, download link and instructions are given below.
How to Install?
1- After downloading the file, click it to run.

2- Press ”Install” button. Files shall be dispatched to C:\TC which is a default directory.
3- Following screen will pop up automatically:

4- Follow the steps or take a look at the screenshots given below for more idea:




5- After installation is complete, go to Drive C >TC folder >BIN folder and run ”TC”. It is an executable file which will run the compiler.
Talal
If you have doubts regarding setup file, check this ‘VirusTotal’ report:
https://www.virustotal.com/en/file/3803459f220b301ac2cbe0f4031487f69be189c52eaa2308e14f53e3b03eef10/analysis/