Windows 10: Switching to ACHI. Should i reinstall windows?

Hello. I am going to switch my SATA mode from Intel rts to ACHI. I did some research and found out that when i make the switch windows will become unbootable thus i will need to do reinstall, however, i found a guide that stated i canmake the switch without needing to reinstall. I was wondering if i go the way of not reinstalling will windows still work properly, or do you recommend doing a reinstall

Thanks.

:)

 

Switch from ATA to ACHI without reinstalling windows 10

After I did that I kept getting a blue screen saying critical_process_died

 

Switch from ATA to ACHI without reinstalling windows 10

Hi Gorekith,

Thank you for being a part of Windows 10 Insider Preview.

I appreciate you for providing details about the issue and we are glad to assist you.

I suggest you to follow the below steps to switch from ATA to ACHI and check if it helps.

• 
  Press Windows key + R from the Keyboard.
  
• 
  Type regedit and hit Enter.
  
• 
  Browse to HKLM\System\CurrentControlSet\Services\msahci\
  
  
• 
  Change the DWord value named "Start" from "3" (ATA) to "0" (AHCI)
  
• 
  Shutdown the computer.
  
• 
  Power the computer back on, making sure to enter the BIOS and change the SATA Operation to AHCI.
  
• 
  Save the change.
  

Registry Disclaimer:

Serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.
For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

322756 (http://support.microsoft.com/kb/322756/) How to back up and restore the registry in Windows.

BIOS Disclaimer:

Modifying BIOS/ complementary metal oxide semiconductor (CMOS) settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of
BIOS/CMOS settings can be solved. Modifications of the settings are at your own risk.

Kindly let us know if you need any further assistance with Windows. We are happy to assist you.

Thank you.

 

Switch ACHI to IDE

Hello All, hope you can help...

I'm purchasing a Acer Emachines e520 which has a SATA harddrive set to ACHI.

The laptop comes with Vista but I want to delete this and install Windows XP Pro. I read on a review website that to do this I have to set the Harddrive from ACHI to IDE before doing this. How would I go about that?

By the way the quote from the website I mentioned is below
http://devoracles.com/acer-emachines...ock-this-world
"As always with AHCI enabled hard drives, you have to switch to IDE mode before you can install XP. After you switched to IDE mode, installing any OS is straight forward."

Thanks