Windows Security (formerly Windows Defender) is the built-in antivirus tool bundled with the operating system. It has saved ...

Windows 11’s latest cumulative update is not a routine housekeeping patch, it closes critical security holes and stabilizes the operating system at a moment when attackers are actively probing for ...

Windows 11 KB5086672 is now rolling out as an optional update with several notable improvements after March 2026 update ...

Windows 11 now shows Secure Boot alerts to help users prepare for 2026 certificate expiration and avoid security issues.

New out-of-band Windows 11 update fixes March's installation errors - how to get it ...

Support for Windows 10 has ended, putting your system at risk. You don't have to upgrade—here's how to stay protected.

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...