To ensure the best level of protection, Microsoft Update allows for rapid releases, which means smaller downloads on a frequent basis. Your policy and registry might have this listed as Microsoft Malware Protection Center (MMPC) security intelligence, its former name. This configuration helps you control which updates from the official WU server are approved for the enterprise, and also helps proxy and save network traffic to the official Windows Updates network. In the antimalware policy configured in Intune there is an "internal definition update server" option that you can set to use on-premises WSUS as the update source. If you use SCCM/SUP to get definition updates for Microsoft Defender Antivirus, and you must access Windows Update on blocked client devices, you can transition to co-management and offload the endpoint protection workload to Intune. Intune Internal Definition Update Server. Security intelligence updates for Microsoft Defender Antivirus and other Microsoft anti-malware (See note 2 below).Microsoft Endpoint Configuration Manager.Windows Server Update Service (See note 1 below).There are five locations where you can specify where an endpoint should obtain updates: A more frequent update schedule can result in more network usage, whereas a less-frequent schedule can result in larger file sizes per download. However, you must also consider download frequency as well. The older the updates on an endpoint, the larger the download is. The source used to download and apply updates.The age of the last update on the device and.However, the size of the delta depends on two main factors: In most cases, only the differences between the latest update and the update that is currently installed (the set of differences is referred to as the delta) on the device is downloaded and applied. When updates are published, some logic is applied to minimize the size of the update. If updates from the current source are out-of-date, the next source in the list is used immediately. Updates are obtained from sources in the order you specify. Typically, you configure endpoints to individually download updates from a primary source followed by other sources in order of priority, based on your network configuration. To learn more, see 2019 SHA-2 Code Signing Support requirement for Windows and WSUS. Your devices must be updated to support SHA-2 in order to update your security intelligence. Other than that, deployment is fast, so you will have your Windows Defender updated in minutes.Microsoft Defender Antivirus Security intelligence updates and platform updates are delivered through Windows Update and starting Monday, October 21, 2019, all security intelligence updates are SHA-2 signed exclusively. Furthermore, please pay attention to the download links, since they are designed for different Windows iterations. It is very important that you download and install the 32-bit release for x86 systems and the 64-bit release for 圆4 systems. Once installed, they will make sure your PC is safe from the latest known viruses, spyware, PUPs, and malicious files. The Windows Defender Definition Updates are offline packages containing the most recent antivirus signature for Windows Defender. In such cases you must either force a definition update by navigating to the designated tab of Windows Defender or by downloading and installing the latest signature definitions. Ultimately, Windows Defender might fail to update the definitions itself for whatever reason. However, there are situations when this is not possible, such as when the PC is no longer connected to the Internet or when you haven’t been around to turn the computer on for a longer period of time. If you rely on Windows Defender to protect your computer against malware, it is advisable you run definition update on a daily basis. Unless the latest virus definitions are installed, the anti-malware tool might fail in detecting some recent threats, which could lead to data theft and a compromised system. Running any signature-based antivirus without the latest definitions might lead to serious security-related problems.
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