Microsoft now warns customers of specific bugs and compatibility problems that prevent it – at least temporarily – from offering Windows 10 PCs the latest feature upgrade.

After Microsoft re-released the October 2018 Update – labeled 1809 in the company's yymm format – on Nov. 13, it expanded the section titled "Current status of Windows, version 1809, Windows Server 2019, and Windows Server, version 1809" on the definitive Windows 10 update history support page, adding more information about blockers.

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Five blockers currently stymy installation of 1809 to, among others, PCs running a pair of Trend Micro security packages and machines relying on new Intel display drivers. Rather than offer 1809 to such systems, Microsoft simply refuses to give them the upgrade.

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