Microsoft has acknowledged a glitch in its latest mandatory security update for Windows 11 23H2, KB5046633. The issue has caused users to receive an unexpected end-of-support notification from the Windows Update service.

Microsoft’s support for its 1.5 billion Windows users has been making headlines for months. It’s now just a year before Windows 10’s unpopular end-of-life, with the 850 million PC users yet to move to Windows 11 now contemplating the $30 single year extension that has just been confirmed.

Users who installed the update reported a peculiar notification from the Windows Update service. The message erroneously warns that Windows 11 23H2 is approaching its end

A new mandatory security patch for Windows 11 was released this past Tuesday, known as update KB5046633 for Windows 11 23H2. Users who have installed the update, however, are reporting a strange message that’s showing up ever since.