The two different program files are available only in the 64-bit operating system. The 32-bit operating system will have only a single program file folder. The main difference is that the program file ...

Starting with Windows Vista, the 64-bit versions of Windows have two Program Files folders. The regular Program Files folder holds 64-bit applications, while "Program Files (x86)" is used for 32-bit ...

The Windows system consists of thousands of files. Many of them have strange names, others have extensions that most users have never seen before. Normally you do not need to worry about these files.