Windows 10 KB3211320 doesn’t pump up Edge, is just a servicing stack update

By: Madeleine Dean
2 minute read

Microsoft recently rolled out a mysterious Windows 10 KB3211320 update aimed at improving the servicing stack. What are the exact improvements this update brings? Well, Microsoft hasn’t offered too many details, only saying: “This update makes stability improvements for the Windows 10 Version 1607 servicing stack.”

Windows 10 KB3211320

The official support page for KB3211320 confirms that this update replaces the previously released update KB3199986, which by the way brought a series of unpleasant issues. It is good to know that KB3211320 doesn’t feature any uninstall option which means the update is permanent.

Interestingly — and confusingly — enough, Microsoft also lists KB3211320 as being an important Edge security update. This piece of information is available in Microsoft’s Security Bulletin Summary for January 2017, where KB3211320 appears as a critical Microsoft Edge security update.

Despite the confusing information, KB3211320 doesn’t bring any Microsoft Edge security patches.

The fact that Microsoft cannot decide what the role of the KB3211320 is opens up an old wound for Windows 10 users. Microsoft has this habit of pushing Windows updates without first explaining what they do.

As a result, more and more users are now reluctant to install the latest Windows 10 updates and prefer to wait until more details are available. Many have already had bad update experiences due to various technical issues triggered by Microsoft’s updates.

Usually, Microsoft publishes the update support page 24 or even 48 hours after rolling out the respective updates. Despite constant criticism against this lack of transparency, it appears that the situation is not going to change anytime soon.

Have you installed KB3211320 on your Windows 10 computer? Did you notice anything particular about this update?


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