By their very nature, laptops are designed to be opened and closed many, many times—for the duration of their useful existence. But if you flip the lid open and shut too many times in specific situations it might crash, because of a weird new bug in Windows 10.

Exactly how many times does it take to invoke a crash? I’m not sure because Microsoft doesn’t say, and instead only notes that the Desktop Windows Manager (DWM.exe) process can stop responding “when you repeatedly close and open the lid in Windows 10.” Good to know. I think.

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