Reduced Windows 10 package size downloads for x64 systems

Published 09-26-2018 04:14 PM 21.6K Views

On Thursday, September 27th, 2018 at 10:00 a.m. PT, commercial customers using Windows Server Update Services (WSUS) or connected to System Center Configuration Manager will see a new feature update available for Windows 10, versions 1703, 1709, and 1803. This new update is the result of listening to feedback from commercial customers like you, who want smaller packages for download from Microsoft to distribution and deployment systems.

As shown in Figure 1, the previously released x64 and x86 files were bundled together as a single download that was approximately 4.8 GB in size.

Figure 1. Feature Update packages in Configuration Manager.

The new feature updates, released as Electronic Software Distribution (ESD) files through WSUS, provide you with the option to download the x64 file as a separate package. By separating the files by system type, the download file becomes approximately 2.6 GB for the x64 package, saving you approximately 2.2 GB of download size immediately. This separation is also similar to what customers experience with new feature updates through Windows Update today.

These feature updates are the original RTM content containing only the operating system, without the latest cumulative updates, and do not include Features on Demand (FODs) or language packs. Because the new feature updates do not include all the updates since RTM, you will need to apply the latest cumulative Quality Update to bring your systems completely up to date. The x64 files are being published for all of the language versions available at RTM, such as EN-US for English-United States. An x64-only feature update will be available for Windows 10, version 1809 once it is released.

Customers who still need x86 feature updates will need to use the combined files originally published, which will continue to be available (as shown in Figure 1) and do not have the “x64” distinction. Configuration Manager or other enterprise management solutions can pull the x86 files from that feature update download to deploy as they did before.

We expect commercial customers who are still moving to the versions of Windows 10 listed above across their global environments to see considerable time and bandwidth savings with this option. Please note; however, that this change will not save bandwidth between the Configuration Manager and the client (PC) device. If you have additional feedback about this new approach, please talk with your account team.

For more information about ESDs, see the Electronic software distribution-based scenario overview.

Super Contributor

Oh wow. Didn't realize they were combined. Yeah, seems like the obvious place to cut the size.

Does ConfigMgr still only let you choose "English", which results in getting both en-us and en-gb? (Clients don't download both, but both are downloaded to WSUS.)
Not applicable

Well, if only I could tell WSUS to fetch x64-only updates during synchronizations. I decline half of the Microsoft Office updates ("32-Bit" ones) and two third of the Windows 10 updates ("x86" and "ARM64" ones).

Super Contributor

+1000 that.. triaging updates in WSUS is very tedious.

Hi Michael, yes you still only have 'English' as an option. To workaround that what we've did in the past, was to specify en-us in the 'title' metadata search.


But we've moved away from rings/servicing plan and target the updates directly for better scoping/automation.


BTW, just downloaded the new x64 FU and they're as advertised. Thank you MS.

Super Contributor

1809 is here, but there are no x64 versions in WSUS. Can't start testing 1809 without them.

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‎Sep 28 2018 11:34 AM
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