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.

Last week I covered some basic file management tips in “Windows Explorer Explained: Tips for Newbies“–and the article was so popular that I figured I should just keep going. So this week I’ll stick ...

New installations of Windows hide all file extensions, except for Windows components, that would appear in Explorer or an application dialog box that displays file names. File extensions are ...

Windows File Explorer provides a ton of options to change how you view your files. What you might not know is that a critical option is disabled by default, despite being vital to your system's safety ...

I was all set to put this “Windows Explorer Explained” series to rest for a while, but then reader Martin wrote in with a question that comes up a lot: in Windows 7, how do you reveal the hidden file ...

Every file that we have saved on our computers has a particular extension. The file extension is added at the end of the filename followed by a dot (.). It tells the operating systems about the ...

From http://www.apple.com/macosx/newversion/<P><BLOCKQUOTE><font size="-1">quote:</font><HR>File extensions help Mac OS X maintain full Internet compatiblity, but ...

One of our readers reported that all the file extensions have changed to some unknown file format. If so, it could be a virus! If a virus has changed all the files extensions to unknown applications, ...