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.

Normally, if you change a file’s extension in Windows, it doesn’t do anything positive. It just makes the file open in the wrong programs that can’t decode what’s inside. However, [PortalRunner] has ...

In total, Microsoft has now blocked 142 file extensions that it deems as at risk or that are typically sent as malicious attachments in emails. Microsoft is banning almost 40 new types of file ...

The deadline to file 2025 tax returns is Wednesday, April 15. Millions will file extensions, giving themselves until the fall ...

If you have a folder containing countless files of different formats, you can follow this guide to sort Files by Extensions into a separate Folder in Windows 11/10. No third-party app is needed since ...

Microsoft plans to expand the list of file extensions that are banned in Outlook for the web (previously known as Outlook Web Access (OWA)). The list, which previously included 104 file extensions, ...

Microsoft will soon be blocking an additional 38 file extension from being downloaded as attachments in Outlook on the Web in order to protect users from malicious files. These additional extensions ...