repair win7 pbr BCD

使用u启动 的bootice工具修复了PBR和win7的BCD文件

Ref:

grub

Win7启动过程及启动项修复详解

http://gqpan.blog.163.com/blog/static/3667970520114106624969/

https://www.addictivetips.com/windows-tips/bootice-modify-backup-restore-master-boot-record-partition-boot-record/

http://www.10tiao.com/html/691/201702/2649775489/1.html