WIN7 open AHCI blue screen solution

When installing WIN 7, AHCI is not enabled. When the SATA mode in the BIOS is IDE, when the BIOS is directly changed to AHCI mode, a blue screen will appear. (Please refer to the motherboard, notebook manual, or consult the relevant brand after-sales)
Solution:
1: In the BIOS, the SATA mode is IDE, enter regedit in the operation after entering the system, open the registration Table editor, open the registry in turn, modify the start under HKEY_LOCAL_MACHINESystemCurrentControlSetServicesMsahci, change the value data to 0, as shown in the figure:

2. Restart, change to AHCI mode in the BIOS, will find new after entering the system Hardware, do not bother, install AHCI driver directly (win7 general networking will be automatically installed, if there is no automatic installation, please go to the motherboard or laptop official website to download the motherboard or a separate AHCI driver), after the installation is completed: