几乎没有人愿意没事重装工作电脑上的操作系统。但几乎所有人都碰到过电脑无故间歇性卡住的情况。

能不能不重装电脑呢？或者至少在重装电脑操作系统时搞清楚，究竟是谁在背后干的这事，好下次避免。

1. 蓝屏了
   实际上”蓝屏是一件好事”，起码证明“操作系统备份的功能”完好无损。
   如何通过蓝屏找到原因，你需要借助搜索引擎啦:百度-蓝屏
2. 你需要创造一个蓝屏
   你可能听说过古老的PS/2键盘通过按键可以创造一个蓝屏。
   但USB呢？微软在XP后开始响应人民的呼声支持USB键盘蓝屏。
   方法如下：
   https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/forcing-a-system-crash-from-the-keyboard
   

1. With PS/2 keyboards, you must enable the keyboard-initiated crash in the registry. In the registry key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\i8042prt\Parameters, create a value named CrashOnCtrlScroll, and set it equal to a REG_DWORD value of 0x01.
   
2. With USB keyboards, you must enable the keyboard-initiated crash in the registry. In the registry key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\kbdhid\Parameters, create a value named CrashOnCtrlScroll, and set it equal to a REG_DWORD value of 0x01.

You must restart the system for these settings to take effect.
After this is completed, the keyboard crash can be initiated by using the following hotkey sequence: Hold down the rightmost CTRL key, and press the SCROLL LOCK key twice.

好了，方法介绍完了。