Learn how to download and install Windows 10 updates and firmware updates to fix a security vulnerability in certain TPM chipsets. You also need to clear your TPM after updating.

Learn how to use the Windows Security Troubleshooter to diagnose and repair Windows security problems by turning on UAC, DEP, Windows Firewall, and other features. Download the troubleshooter and run it on the affected computer or a flash drive or a CD.

Learn how to use the Program Install and Uninstall troubleshooter to fix corrupted registry keys, prevent programs from being installed or removed, and access the product code. The troubleshooter runs on Windows 10, 8.1, 8, and 7.

Learn how to use Microsoft Defender SmartScreen to protect your device from potentially dangerous apps, files, websites, and downloads. Find out how to customize the settings for reputation-based protection, isolated browsing, and exploit protection.

Learn how to use Microsoft Defender to check your device for viruses or malware on Windows, Android, or Mac. Find out the signs of infection, the types of scans, and how to run Microsoft Defender Offline for a deeper scan.

This update provides latest updates for Windows Security platform, which is comprised of the Windows Security app and its underlying service. To obtain the current version of Windows Security app, please run powershell command below: Get-AppPackage Microsoft.SecHealthUI. Manually download the update.

Learn how to use PC Health Check app to check your Windows device health, performance, and eligibility for Windows 11. Download and install the app from https://aka.ms/GetPCHealthCheckApp.

Microsoft Defender Offline is a tool that scans your PC for malware without starting your operating system. Learn when and how to run it, and where to see the scan results in Windows 10, 11, 8.1 and 7.

Learn how to protect your Android, iOS, Windows, and Mac devices from threats by installing Microsoft Defender, a security app included with Microsoft 365 subscriptions. Follow the steps to download, sign in, and set up web protection, anti-malware protection, and other features.

Addresses an issue that prevented the Device Guard PackageInspector.exe application from including all the files needed for an application to run correctly once the Code Integrity policy was completed.