After four times of rebooting and switched off the power supply, the computer stopped with the following error message (in block below):
A problem has been detected and windows has been shut down to prevent damage
to your computer.
UNMOUNTABLE_BOOT_VOLUME
STOP: 0x000000ED (0x80F51820, 0xC0000032, 0x00000000, 0x00000000). "
Moreover, I couldn't log to the safe mode or any other mode, all resulted in the same screen of error message.
Thanks all. Please help.