Definition updates for Windows Defender Antivirus 2020 Microsoft continually updates its antimalware definitions to cover the latest threat...
Definition updates for Windows Defender Antivirus 2020
Microsoft continually updates its antimalware definitions to cover the latest threats and to constantly tweak detection logic, enhancing the ability of antimalware solutions to accurately identify threats.
Manually download and install the definitions
You can manually download the latest definitions or pre-release definitions.
Latest definitions
The latest antimalware definitions file is as follows:
- Version: 1.269.694.0
- Released: Janvier 05, 2020, 10:39 AM UTC
- Documentation: Release notes
You need to download different definition files for different products and platforms. Select the version that matches your Windows operating system or the environment where you will use the definitions.
Download Windows Defender Antivirus for Windows 10 and Windows 8.1
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