POS cashier System reported EFI Shell version 2.00 error

Problem one: This is the case that the hard disk is broken, do not have to try to repair, and directly replace the new one can be
The cause of this problem is: voltage instability, often caused by power outages

Problem two: This situation can be solved
Yesterday installed the operating system on the POS, found that installed two times the XP system has such errors, and finally ready to install the Win7 system, Win7 system after installation, I again format the Win7 system, and then install XP found can be installed, the problem is to solve, Maybe I waited for a while. Press and hold the DELETE key directly into the XP installation interface, the first thought is caused by the BIOS, is preparing to brush the BIOS, after a colleague said on the Internet can not find this type of BIOS, finally the problem is so coincidentally resolved, asked why I am also ignorant

POS cashier System reported EFI Shell version 2.00 error