Windows usually handles these security updates automatically, but you can manually force the download if your system lags behind or works in an offline environment. Method 1: Via Windows Update (Recommended) Open the and click on Settings (Gear Icon).
If your computer cannot connect to Windows Update, you can download the full definition package manually: Visit the Microsoft Security Intelligence portal. Choose the version that matches your system architecture: 64-bit (Most modern PCs) ARM
Hold down the on your keyboard and select System . Locate the System type specification.
The trailing sequences (like 1119.0) pinpoint the exact daily or hourly package release.