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Windows Insider RS5 build 17666 highlights fix for crashing Windows Explorer and Lock Screen glitches as known issue in release notes

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Published onMay 9, 2018

published onMay 9, 2018

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Seems Microsoft’s Windows engineers saved all their exciting news for after the Build 2018 keynotes. After a feature-packed day one and day two keynote presentations regarding new Windows and Microsoft 365 enabled experiences coming to consumers and developers in the near future, the Windows team just pushed live thelatest Insider preview 17666 for Fast Ring and Skip Head release.

Hello#WindowsInsiderswe have released Build 17666 to the Fast ring!https://t.co/yoRincd7Df

— Dona Sarkar (@donasarkar)May 9, 2018

As with most early rounds of a new Windows 10 update testing, there is almost equal parts features and issues associated with each release. Below are a list of outstanding issues that may give some Insiders pause before downloading this latest build.

Known issues

Known issues for Sets & Office

But it’s not all bad news. There are several fixes that come with build 17666 that may actually push those annoyed with 17661’s stability or performance such as:

General changes, improvements, and fixes for PC

So there you have it, a choice between potentially accidentally minimizing all Sets tabs or finally being done with the flashing taskbar as explorer.exe kept crashing.

Happy downloading, Insiders!

Kareem Anderson

Networking & Security Specialist

Kareem is a journalist from the bay area, now living in Florida. His passion for technology and content creation drives are unmatched, driving him to create well-researched articles and incredible YouTube videos.

He is always on the lookout for everything new about Microsoft, focusing on making easy-to-understand content and breaking down complex topics related to networking, Azure, cloud computing, and security.

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Kareem Anderson

Networking & Security Specialist

He is a journalist from the bay area, now living in Florida. He breaks down complex topics related to networking, Azure, cloud computing, and security