Update Windows 10 KB5012599 and KB5012591 updates released

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Microsoft has released Windows 10 KB5012599 and KB5012591 cumulative updates for versions 21H2, version 21H1, version 20H2 and 1909 to fix security vulnerabilities and resolve bugs.

The update has been published for November 2021 Update, May 2021 Update, and October 2020 Update. This update is not available for May 2020 Update (version 2004) if you use the consumer edition, but the same update will be offered on devices using enterprise or education SKUs.

Additionally, Microsoft warned in the bulletin that this is the second last update for versions 1909 and 20H2 (all editions) as support for the OS is set to end in May 2022.

Like every Patch Tuesday, this Windows 10 cumulative update is mandatory and can be installed by going to Settings, clicking on Windows Update, and selecting 'Check for Updates.'

Highlighted fixes in Windows 10 Build 19044.1645​

  • Search highlights: Search highlights will present notable and interesting moments of what’s special about each day—like holidays, anniversaries, and other educational moments in time both globally and in your region. To see more details at a glance, hover, click, or tap on the illustration in the search box.
  • Updates an issue that prevents Android device users from signing in to some Microsoft applications, such as Microsoft Outlook or Microsoft Teams.
  • Updates an issue that causes the Back button of the credentials window, where you sign in, to become invisible in high contrast black mode.