Although Windows 10 is no longer officially supported, Microsoft says users can now sign up for free security updates. Here’s ...

Formerly known as Windows Defender, Microsoft Defender is an antivirus protection program that's included with Windows 10.

You can choose to upgrade to Windows 11 for free if your computer is compatible. You can buy a new PC that already has Windows 11 pre-installed (or opt for an alternative, like a Mac or a Chromebook).

Windows 11 officially requires a Trusted Platform Module. Here's why and what to do if your old PC doesn't have one.