Win7 Ultimate hard disk mode error leads to blue screen solution

Win7 Ultimate has special requirements for hard disk mode. Generally, the installation system uses the BIOS default IDE hard disk mode, and its compatibility is better. However, Win7 Ultimate needs to convert the hard disk mode to AHCI, otherwise it may cause a blue screen. Let's take a look at the solution to this situation.

Win7 Ultimate Hard Disk Mode Error Causes Blue Screen Solution:

1. Click on "Start”, select “Run" in the menu, in the input box of the run column Type “regedit” and press Enter to open the Registry Editor.

2. In the "Registry Editor" window, click the "HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/Msahci" item, select the Msahci item, and double-click the name in the right window to "Start". ; the project will pop up a dialog box, change the default value data from 3 to 0, click “ OK & rdquo;, restart the computer.

3. Restart the computer Before entering the startup interface, press the Del key on the keyboard to enter the BIOS. On the “Integrated Peripherals” page, change “SATA RAID/AHCI Mode” to “AHCI”. ; (Different BIOS option names have nuances).

4. Save and restart, the system will automatically install the AHCI driver after entering the system. After installation, the system will ask to restart again. After the restart, the AHCI mode of the hard disk will be turned on.

Changing the hard disk mode to AHCI has a lot of help for the user experience. It has improved the speed of large file copying to some extent. Most importantly, this avoids the blue screen of Win7 Ultimate.