Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


Change back from LEGACY to UEFI (BIOS)

  • Please log in to reply
1 reply to this topic

#1 paperwhite


  • Members
  • 5 posts
  • Local time:11:52 AM

Posted 30 March 2017 - 03:59 PM

(Not sure if it's the right sub-forum)

While trying to fix a boot error (0xc0000034) on my laptop I accidentally changed my computer's BIOS from UEFI to Legacy, is there a way to change it back?

The computer is clean so it doesn't matter if it's a method that causes loss of data. I have a bootable USB with windows 10 (maybe 8) on it. At some point I got into the menu for this, but must of the times I just get straight to the BIOS. And when I got to the menu for installing windows, I got the error message "windows cannot be installed on this disk. The selected disk is of the GPT partition style." so I couldn't get past from there anyway

The computer is an MSI GE70 2QE

I can't find a way here to post photos from my iphone (and can't use the computer), but here is what it says on the startup screen of the BIOS. The only options I have from here is either "Delete RAID volume" or "Reset Disks to Non-RAID" (none of which I know what it means)

Physical devices:
ID. Device model. TYPE/STATUS(Vol Id)
0. PLEXTOR PX-256M6. Member Disk (0)
1. PLEXTOR PX-256M6. Error Occurred (0)
4. HGST HTS721010A9. Non-RAID Disk

I know I bleeped up and should have done more research before tweaking with this, but the damage is done so I greatly appreciate any help

BC AdBot (Login to Remove)


#2 usasma


    Still visually handicapped (avatar is memory developed by my Dad

  • BSOD Kernel Dump Expert
  • 25,091 posts
  • Gender:Male
  • Location:Southeastern CT, USA
  • Local time:06:52 AM

Posted 01 April 2017 - 02:56 PM

You can go into the BIOS and change it back (I seem to recall responding to this topic on another forum (from my phone).

Usually, once you're in the BIOS, there's an F key to push to reset to defaults.

I wasn't able to find BIOS info on the MSI website - but you may wish to contact them for instructions.

My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able.

- John  (my website: http://www.carrona.org/ )**If you need a more detailed explanation, please ask for it. I have the Knack. **  If I haven't replied in 48 hours, please send me a message. My eye problems have recently increased and I'm having difficult reading posts. (23 Nov 2017)FYI - I am completely blind in the right eye and ~30% blind in the left eye.<p>If the eye problems get worse suddenly, I may not be able to respond.If that's the case and help is needed, please PM a staff member for assistance.

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users