Antivirus upgrades

Keeping your OS installation images up to date helps avoid a gap in protection. For more information, see Microsoft Defender update for Windows operating system installation images. Package version: Package version: 1. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Tip To see the most current engine, platform, and signature date, visit the Security intelligence updates for Microsoft Defender Antivirus and other Microsoft antimalware.

Note Monthly updates are released in phases, resulting in multiple packages visible in your Window Server Update Services. This article lists changes that are included in the broad release channel. See the latest broad channel release here. Features and app availability may vary by region. Must be signed into a Microsoft account. Otherwise, internet access required.

Fees may apply. OneDrive files are restored to the state they were in before the attack occurred. File versions created up to 30 days in the past can be restored at any time for any reason. Requires Microsoft account. Location permissions must be active; driving safety available only in the U. From the box to startup to browsing, Windows helps you stay secure Next-generation antivirus and malware defense.

Trigger an update. A manually triggered update immediately downloads and applies the latest security intelligence. This process might also address problems with automatic updates. Microsoft Defender Antivirus and other Microsoft antimalware solutions provide a way to manually trigger an update. Enterprise administrators can also push updates to devices in their network. To clear the current cache and trigger an update, use a batch script that runs the following commands as an administrator:.

Manually download the update. Latest security intelligence update. These important security features often are lacking with free software. Considering all of the risks mentioned above, third-party antivirus protection can be critical.

It can mean the theoretical difference between browsing online safely — with your financial and personally identifiable information PII safe inside your lockbox at home, and going shopping with your personal and financial information available for the taking. Norton features top-of-the-line defenses against these cyber threats, safeguards your PII and online transactions, and ensures emails and links come from trusted sources.

Cyber Safety also means protecting not only your devices, but also your identity and privacy. All rights reserved. Firefox is a trademark of Mozilla Foundation. App Store is a service mark of Apple Inc. Alexa and all related logos are trademarks of Amazon. Microsoft and the Window logo are trademarks of Microsoft Corporation in the U. The Android robot is reproduced or modified from work created and shared by Google and used according to terms described in the Creative Commons 3.

Other names may be trademarks of their respective owners. Security Center Malware What is antivirus software? Antivirus definition. What is antivirus software designed to do? What are the different types of antivirus protection?

Malware signature antivirus Malware, or malicious software, installs viruses and spyware on your computer or device without your knowledge. System monitoring antivirus This is where system monitoring antivirus software comes into play.