Step 1: Go to the website https://ffmpeg.zeranoe.com/builds/
Step 2: Select the FFmpeg version that you want to download, and then select your OS Architecture.
Step 3: Click on 'Static', and then Click on 'Download Build' button.
Step 4: After Downloading, Extract using any Zip extractor software, like 7zip or Winrar.
Step 5: Now, Copy the extracted Folder to C:\ Drive.
Step 6: Now, we have to set up the Environment Variable. Go to Search box, and then Type 'Environment Variable'.
Step 7: Click on 'Edit the system environment varibles'.
Step 8: Click on 'Environment Variables'.
Step 9: Click on 'Path', and thn click on 'Edit', and then click on 'New'.
Step 10: Now, copy the path of bin folder in ffmpeg folder in c:\ Drive. It's like C:\ffmpeg\bin
Step 11: Paste that to Step 9: Instruction.
Step 12: Click on 'Ok' button of all windows.
Step 13: Now, Go to Command Prompt, and then Type ffmpeg, if you see ffmpeg version and other information, that is successful sign that you have installed FFmpeg properly.