This month’s Patch Tuesday brought some weird Windows bugs, but this one’s probably the worst.

I’m seeing reports all over the web that folks running Windows 8.1 aren’t able to log in to their computers using a Microsoft account. Microsoft’s response at this point is that they’re aware of the problem, but if you want to use your machine, you need to log on with a local account.

cannot sign in to ms account Woody Leonhard/IDG

That isn’t a whole lot of help for people who haven’t set up a local account or need to get to something on the machine that’s only available to the Microsoft account.

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