引导文件丢失，即系统目录下Boot目录及Bootmgr丢失，一般的解决方案有如下两种：
1. 进WINPE系统进行修复。
2. 利用bootbcd修复，bootbcd c:\Windows /s c:。
第二种方法可能会报错：BFSVC: Failed to set element application device. Status = [c00000bb]，此时可以用如下的脚本进行修复。
如将该脚本保存为test.bat，需要修复的盘为z盘，运行命令test.bat z即可。
::@echo off::make sure have one parameterif [%1] == [] exit 1::create environmentbcdboot %1:\Windows /s %1:del %1:\Boot\BCD::create BCD Filebcdedit.exe /createstore %1:\Boot\BCD::create bootmgrbcdedit.exe /store %1:\Boot\BCD /create {bootmgr} /d "Winodws Boot Manager"bcdedit.exe /store %1:\Boot\BCD /set {bootmgr} device partition=C:::get device keyfor /f "delims=" %%i in ('bcdedit.exe /store %1:\Boot\BCD /create /d "Windows7" /application osloader') do (set DeviceKey=%%i)set DeviceKey=%DeviceKey:~2,38%echo %DeviceKey%::set BCD bcdedit.exe /store %1:\Boot\BCD /set %DeviceKey% device partition=C: bcdedit.exe /store %1:\Boot\BCD /set %DeviceKey% osdevice partition=C:bcdedit.exe /store %1:\Boot\BCD /set %DeviceKey% path \Windows\system32\winload.exebcdedit.exe /store %1:\Boot\BCD /set %DeviceKey% systemroot \Windowsbcdedit.exe /store %1:\Boot\BCD /displayorder %DeviceKey%bcdedit.exe /store %1:\Boot\BCD /default %DeviceKey%::avoid winload.exe error bcdedit.exe /store %1:\Boot\BCD /set {default} osdevice bootbcdedit.exe /store %1:\Boot\BCD /set {default} device bootbcdedit.exe /store %1:\Boot\BCD /set {default} detecthal 1
