How to display the extension of the exe file in win7 computer

Generally speaking, the programs and file names displayed in the new computer are abbreviated. Of course, we have to admit that the system does reflect the system. Perfection, aesthetics, but on the other hand, this method of operation has brought shortcuts to bad molecules, making it easier for them to spread some files and steal information from our computers. Of course, sometimes we operate When it is necessary to use the extension of the file, it is also inconvenient, then in these cases, how do we find the extension of the file in win7 Ultimate?
1. First, let's press win+R at the same time. Run the window of the computer, then type regedit in the window and click Enter. This will open the Registry Editor window.
2. Next, we find HKEY_CLASSES_ROOT in the left menu of the open registry editor window, and then there will be exefile option in the window on the right, note that it is exefile, not exefile.exe.
3. Let's select exefile, then right click, select New - String value in the slide menu, and name the newly created string AlwaysShowExt.
4. Finally save the above settings and modify, click the OK button at the bottom of the window.