Ref: Intel Skylake bug causes PCs to freeze during complex workloads Intel Skylake bug causes PCs to freeze during complex workloads What's a complex workload? ... Did your Skylake PC Freeze? Intel wont say what the nature of the bug is ... so we get to define it anyway we want. "Intel has identified an issue that potentially affects the 6th Gen Intel Core family of products. This issue only occurs under certain complex workload conditions, like those that may be encountered when running applications like Prime95. In those cases, the processor may hang or cause unpredictable system behavior." Intel has developed a fix, and is working with hardware partners to distribute it via a BIOS update. No reason has been given as to why the bug occurs, but it's confirmed to affect both Linux and Windows-based systems.