Portable document format (PDF) files remain a popular choice for business documents ranging from contracts and forms to manuals and reports, so there's a good chance you need to open them often.

When you double-click on a file in Windows 8, Windows will automatically open that file using a program that has been associated with that file's extension. There may come a time, though, that you ...

File Association Fixer for Windows 8, Windows 7 & Windows Vista will let you repair and fix file associations and extensions in a single click. UPDATE: File Association Fixer v2 supports Windows 10, ...

Windows 8 has two environments: the full screen, touch-centric Windows Store App interface (also called Metro) and the Desktop interface, which looks and acts like Windows 7. If you install programs ...