

If you’d like to know more, check out Help Desk Geek’s article explaining why 64-bit Windows needs two Program Files folders. This is why the folders are structured this way. The 64-bit versions of Windows have backward compatibility with 32-bit applications, but the 32-bit versions of Windows cannot run 64-bit applications. However, for 64-bit versions of Windows, the Program Files folder will contain 64-bit applications, while the Program Files (x86) folder will contain all 32-bit applications. If you’re running a 32-bit version of Windows, you should only see the Program Files folder (and all programs inside of it will be 32-bit).
