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Updated manage-protection-updates-windows-defender-antivirus.md

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Iaan D'Souza-Wiltshire 2017-07-26 20:39:34 +00:00
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windows/threat-protection/windows-defender-antivirus/manage-protection-updates-windows-defender-antivirus.md
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@ -65,6 +65,9 @@ Microsoft Update allows for rapid releases, which means it will download small d
The WSUS, Configuration Manager and MMPC sources will deliver less frequent updates. The size of the updates may be slightly larger than the frequent release from Microsoft Update (as the delta, or differences between the latest version and what is on the endpoint will be larger). This ensures consistent protection without increasing ad hoc network usage (although the amount of data may be the same or increased as the updates will be fewer, but may be slightly larger).
> [!IMPORTANT]
> If you have set MMPC as a fallback source after WSUS or Microsoft Update, updates will only be downloaded from MMPC after 2 consecutive days of not being able to connect to the WSUS or Microsoft Update services.
Each source has typical scenarios that depend on how your network is configured, in addition to how often they publish updates, as described in the following table:
Location | Sample scenario
@ -73,7 +76,7 @@ WSUS | You are using WSUS to manage updates for your network.
Microsoft Update | You want your endpoints to connect directly to Microsoft Update. This can be useful for endpoints that irregularly connect to your enterprise network, or if you do not use WSUS to manage your updates.
File share | You have non-Internet-connected devices (such as VMs). You can use your Internet-connected VM host to download the updates to a network share, from which the VMs can obtain the updates. See the [VDI deployment guide](deployment-vdi-windows-defender-antivirus.md) for how file shares can be used in virtual desktop infrastructure (VDI) environments.
Configuration Manager | You are using System Center Configuration Manager to update your endpoints.
MMPC | You need to download the latest protection updates because of a recent infection or to help provision a strong, base image for [VDI deployment](deployment-vdi-windows-defender-antivirus.md). This option should generally be used only as a final fallback source, and not the primary source.
MMPC | You need to download the latest protection updates because of a recent infection or to help provision a strong, base image for [VDI deployment](deployment-vdi-windows-defender-antivirus.md). This option should generally be used only as a final fallback source, and not the primary source. It will only be used if updates cannot be downloaded from WSUS or Microsoft Update for 2 consecutive days.
You can manage the order in which update sources are used with Group Policy, System Center Configuration Manager, PowerShell cmdlets, and WMI.