Yesterday using EASYBCD software, began not to understand, hand win10 the boot removed, and later found that the computer shutdown always turned into a reboot, helpless forced shutdown. Today restarted the computer, found that the computer has been unable to open, it is understood yesterday was mistakenly deleted Win10 BCD.
(memory) After booting into a prompt interface, press ESC to enter a new interface, and then press F11 to enter a system backup recovery interface, found in the "Command prompt."
Type code: BCDboot c:\windows/l ZH-CN
Enter
Repair successful, restart the computer.
In short, if you can find the "command Prompt" feature on this machine, then you do not need to use USB drive boot disk. I will not take my own computer to do the test again.
Code reference from: https://www.cnblogs.com/ysugyl/p/8981453.html
[Problem Solving]win10 startup item (BCD) (HP PC Pro-Test without boot disk, not reload system)