: Enable Multi-Factor Authentication (MFA) for your Microsoft account and any internet-facing services.
Windows comes with robust, built-in protection tools that should be active at all times. Keep your computer secure at home | Microsoft Support
: Enable automatic updates in Windows Update to ensure security patches for Windows and Microsoft Office are applied immediately.
: Use tools like the Microsoft Store or individual app update settings for browsers (Edge, Chrome) and other common software.
: Avoid using an Administrator account for daily tasks; use a "Standard" user account to limit the potential damage from malware.