Depending on which program is causing this problem, you may encounter the mfc71.dll error in almost all Microsoft operating systems including Windows 11, Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, and more.
MFC71.DLL not found error
Follow these steps in the order they are listed below to try the most likely solutions first.
Restart your computer. Sometimes mfc71.dll errors are one-time issues and a simple restart can fix the problem. It’s not a very likely solution, but it’s a simple first step that could save the day.
Reinstall the program or game. If you receive an "mfc71.dll not found" error when you open a specific application, reinstall the application. The installation should restore this DLL file to its proper location.
