Windows Security · Course 1
The Windows Security App
Learn every guard inside Windows Security and how to read it.
- 1Microsoft Defender Antivirus12 min · Scans, quarantine and the settings that keep Defender itself safe.
- 2SmartScreen and Reputation Checks11 min · How Windows judges a download, and what a publisher's signature tells you.
- 3Ransomware Protection11 min · Lock your important folders and plan how you would get files back.
- 4Device Security and Core Isolation10 min · The hardware guards Windows uses, and why an old driver can block them.
- 5Challenge: The Same Threat Every Night13 min · Find out why Defender keeps catching something in the family PC's Downloads.
Hands-on
Do it on the practice computer
Lessons have labs you can try in your browser, plus questions that earn points toward the Shield Keeper badge.
Start lesson 1