There are really amazing programs that work with icons full of tools, functions and options both to create and edit them and to extract them, but if what you are looking for is simply a program to extract the icons from the files and that, in addition, is free, then What you need is Icon Extractor Free.
With Icon Extractor Free you can extract the icons from any source, be they ICO, EXE, DLL files, etc. The extracted icons can be saved in ICO format or directly as images in JPG, GIF, PNG, BMP or TGA.
Icon Extractor Free supports working with both Windows XP and Vista icons.
You can free download Icon Extractor Free and safe install the latest trial or new full version for Windows 10 (x32, 64 bit, 86) from the official site.
Devices: Desktop PC, Laptop (ASUS, HP, DELL, Acer, Lenovo, MSI), Ultrabook
OS: Professional, Enterprise, Education, Home Edition, versions: 1507, 1511, 1607, 1703, 1709, 1803, 1809