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Hitachi EUB-5500 Ultrasonic Troubleshooting(2)
Fault phenomenon
After starting up, the operating system cannot enter, the screen is black, and the prompt is No operator system.

This failure is generally caused by two conditions:
1.The underlying Windows operating system file damage, the system can not boot the boot file, resulting in the failure to enter the Windows operating system.It can be solved by repairing the system or reinstalling the system.
2. Hard disk damage causes the system to be unable to read the boot file.This situation even after the reinstallation of the system will still report the same fault, need to replace the new hard disk after reinstallation of the system.