At least those 900 million Windows 10 users have another year before support ends—absent a surprise Microsoft support extension, an affordable support package or a workable workaround. But for 50-million Windows users that end of support nightmare has come true, and Microsoft is warning them of the consequences.

Microsoft’s advice may make some sense from a limited perspective, but it glosses over concerns about a towering scrapheap of Windows 10 PCs

The endless cat-and-mouse game between Microsoft and the community of devoted Windows hackers just took another turn.