Traditional Culture Encyclopedia - Traditional stories - Hello, I have an HP 450G5 now, and I need to change it to WIN7 system. How to change the boot? UEFI is gray and cannot be changed.
Hello, I have an HP 450G5 now, and I need to change it to WIN7 system. How to change the boot? UEFI is gray and cannot be changed.
1, which should be caused by changing the partition table format and unable to start using uef.
2. You can enter the bios and set the mode to compatible mode to correctly identify the hard disk.
3, security->; Safe startup control-> defective
4, boot->; Start CSM-& gt；; enable
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