Tag Archives: KB4516421

Windows 10 V1903: Update KB4516421 (Sept. 12, 2019)

[German]Microsoft surprisingly released another update for the Windows 10 May 2019 Update (Version 1903) on September 12, 2019. However, this update is undocumented and very mysterious. Here is some information.  Addendum: Microsoft has released details about this update. Advertising

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