Answer:
Do nothing. If your computer has Windows 7/8/10 and you are changing the motherboard, it is possible that the operating system will boot successfully without extra efforts after replacing hardware. It takes a few steps to do, but it is possible to change the motherboard without reinstalling Windows. E.g. by changing the registry values and or using backup software like AOMEI.
Step-by-step explanation:
If the message "system is booting in mpm mode" message is not displayed, it means it isn't in factory mode. MPM mode refers to manufacturing programming mode and it is used for unit testing.