What should I do if win10 installs a software and causes a blue screen error to enter safe mode?

The normal running win10 has a blue screen error in the win10 inaccessible boot device because of installing a certain software. Can't enter the safe mode? I also encountered it, and it was busy at noon. Most of the experience says that reinstalling the system and entering a safe mode change configuration are not a good solution to this problem. I saw a solution in a piece of experience, thanked the author and helped me solve the problem. I am here to write about my specific practices, I hope more people can see.
1, download the old peach U disk boot disk production tool on the computer A, and related tutorial production boot disk

2, insert the U disk into the faulty computer B
3, set the computer from the U disk Start
4, enter the old peach win desktop, open the file manager, find the [system disk: SYSTEM file under the WindowsSystem32configRegBack directory, and copy

5, back to [system disk: WindowsSystem32config directory, paste SYSTEM, at this time will prompt whether to overwrite the original SYSTEM, select “ is “.

6. Restart the computer and boot from the hard disk.
7, you're done
Note: Backup system disk: Windows system32config directory SYSTEM file, in case this method does not work.