When you open an image, a different app than usual starts up. When you open a music file, "This isn't the app I wanted..." ...

Microsoft hides file extensions in Windows by default even though it's a security risk that is commonly abused by phishing emails and malware distributors to trick people into opening malicious files.

Microsoft uses file associations to set default programs for opening different file types on all its operating systems. As a result, when you open a file, be it text, image, or document, on your ...

What steps do I need to take to change the default action on Windows XP and Windows 7 when someone tries to open a CHM file? I want the file extension to be associated with notepad.exe for ALL users.

I've got two boxes that for some reason are now defaulting the extenion of jpgs to jpegs if I try to right click through IE and "save as" the file. This is with files that are named with the jpg ...

Windows 11 (and Windows 10, which reached end of support in October 2025) lets you assign default apps for file types, protocols, and links. But a persistent and frustrating bug causes these settings ...

First, open Windows Settings by pressing Windows+1 on the keyboard. You can also rick-click the Start button and choose Settings from the menu. In Settings, select "Apps" in the sidebar and choose ...

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. When a program is installed in ...