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Microsoft releases an optional Windows Update which silently installs Windows 10 downloader

Microsoft releases an optional Windows Update which silently installs Windows 10 downloader

by AshwinApril 7, 2015

Microsoft may have failed to convince XP users to upgrade to Windows 8, but it is leaving no stone unturned to ensure that Windows 10 does not meet the same fate.

Windows 10 Logo

You know what I’m talking about here, last week, we reported about the Redmond company’s plan to offer Windows 10 as a free upgrade for all Windows 7 and 8.1 users, and how the company could even open sourcing Windows in the future.

However, the Windows 10 upgrade will only be offered for free during the 1st year, and all users who upgrade will continue to receive updates for the lifetime of the device. So, it is within this time frame, that Microsoft has to convince users in a bid to make them board the Windows 10 bandwagon.

This is no easy task, there are millions of Windows 7 and 8.1 users. How is Microsoft going to accomplish such a feat?  And how will the upgradation work? Will a user have to download an ISO of Windows 10 and install it manually?

Not all users are tech-savvy to install Windows manually, so a user-friendly method may just be necessary, for this plan to work. And it appears that the Microsoft is one step ahead.

The company has pushed out an optional update called Windows Update KB3035583. It is a silent downloader of Windows 10. Once it has been installed, it will automatically notify you when the final version of the upcoming version of Windows is ready and available for download. This optional update is available for computers running on Windows 7 Service Pack 1 or Windows 8.1.

The update creates a new folder under System32 called GWX, which has 9 files and a new sub-folder called Download. Four of those files are .EXE files. One of those is named GWXUXWorker.EXE, and has a description which states “Download Windows 10”. It is possible that the X in the file name stands for the Roman numeral X, which is 10.


It is possible that there may be hundreds, if not thousands of eligible Windows 7 and 8.1 users, who may not have heard of Windows 10, or are aware of the free upgrade offer. So, this silent downloader is actually a brilliant solution from the company to ensure that Windows 10 reaches out to as many users as possible.

I don’t want Windows 10. Is there any way I can prevent Windows from installing it automatically?

Yes, there is a very simple way to prevent Windows 10 from being downloaded. All you need to do is skip the update KB3035583. And since this is an optional update, the only way that you may get it is by manually opting to install it. So, if for some reason you do not want to move over to the latest iteration of Windows, pay attention to the recommended update section, where the update will be offered, and just uncheck the update. That’s it.