Both Program Files (x86)” and “Program Files can run on 64-bit Program files are a directory of the third-party application software installed on the computer.

Every data file on your PC should be associated with an application, so that opening the file will open the right program. But the official "right" program isn't always the right one for you.

Learn how to delete residual files, folders, registry keys & traces after uninstalling software on a Windows 11/10 computer.

Microsoft is making it easier to change your default file associations by adding a new search feature that lets you quickly find the extension you wish to modify.