查了一下外國也不少災情：
KB4056894 Causing bluescreen at boot on Athlonx2 systems

https://www.reddit.com/r/windows/co...ws_7_kb4056894/
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SeymourMuchmore 3 指標 1 天前*
Windows 7 failed to boot after an automatic install of this patch. Had to restore back to an earlier point. The machine has an AMD cpu

zip369 2 指標 1 天前*
Same issue here. Unfortunately, I cannot use the system restore to go back. Is there a way to uninstall this patch when Windows won't boot?

disqreaderror 1 指標 1 天前*
Same here. This update worked fine on my four intel desktops and laptops. But my AMD Athlon X2 6000+ machine issued an immediate 0xC4 BSOD on reboot and every boot after that. Even boot into safe mode gave the BSOD. Had to boot system repair, then do system restore to before the update. It has an nvidia nforce chipset. Win7 pro 64

Windows still wants to install that update, so I had to hide it.
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中間那位zip369，後來又加了一篇他解決問題的連結：
Problems with Windows 7 Quality Rollup (KB4056894)

閒的沒事作的朋友可以來玩玩看。