To download and install , you should use a trusted source that provides the version bundled with the TDM-GCC 4.9.2 64-bit compiler . Download Links
devcpp.exe → Properties → Compatibility → Run this program in compatibility mode for Windows 7. Also, check "Disable fullscreen optimizations"..exe file and select Run as administrator.: A more modern and maintained fork of the original software, which also supports 64-bit systems, is available from Embarcadero . dev-c 5.11 download 64 bit