Windows Cant Be Installed Because This Pc Has an Unsupported Disk Layout for Uefi Firmware

Yes. Windows now includes a utility to catechumen your MBR disk to GPT (which is what UEFI requires) without data loss.

MBR2GPT.EXE is role of Windows 10 version 1703, which came out in Spring 2017. What version of Windows are you running now? It sounds like you are currently running in Legacy BIOS mode on a PC that is capable of UEFI BIOS way.

https://docs.microsoft.com/en-the states/windows/deployment/mbr-to-gpt

Is your existing Windows x working right now?  If so, check Settings – Organization – Near and let united states of america know the electric current Version and build number that are shown there.

Even if you do not yet accept version 1703 of Windows 10, I am sure that in that location is a way to go on without formatting first.

If your computer is not running, but yous take whatever other calculator available, create a bootable USB stick with Windows x install media on information technology, past running the Media Creation Tool from here:

https://www.microsoft.com/en-us/software-download/windows10ISO

Howdy,

My read on this is that you are actually using “Legacy” bios at the moment, merely are using installation media for UEFI…

The installation media normally needs to be created differently for UEFI or Legacy… The blazon on installation media determines how windows will try to install…

My guess is if you practice any blazon of installation while booting from the media, y’all may lose your files, although some may be saved in a Windows.erstwhile binder…

Yous might try inbound Boot Options at the Postal service screen and selecting your Boot Device as a standard device… non as a “UEFI Device”…

“CD\DVD Drive” as opposed to a “UEFI CD\DVD Drive” as a for case…

If you lot run the Installation media from inside windows you will not become that mistake and may be able to practise a Repair Install without losing annihilation, merely I can’t guarantee that…

You could also try a upgrade to a newer version which would also salve all of your files…

An alternative would be to copy the files you desire to save to a external drive and practice a clean install to whatsoever setup you actually want.. Although this will not be of any benefit for installed programs..

I volition let him tell us the details, but it sounds to me like he is running setup.exe to upgrade Windows 10 from within running Windows.  If he was running Legacy BIOS way, he could non kicking UEFI media and if he has switched to UEFI BIOS way, his existing Windows x would non boot.  If he is booting Windows install media and wants to upgrade, setup will say to run it from inside Windows instead.  I think that sometimes Windows setup detects a UEFI-capable PC, running in Legacy BIOS style, and tries to force a switch to UEFI mode.

In whatever event, he can run MBR2GPT to convert the drive without formatting or losing data.  If he does not nevertheless have version 1703 or greater of Windows ten, he tin probably all the same boot with version 1709 install media and convert the disk to GPT using MBR2GPT.EXE.

Even prior to the release of MBR2GPT, at that place were ways to convert back and forth, such as by booting a Ubuntu Alive USB and running Gparted.  I once made the mistake of converting my old Dell Legacy BIOS laptop hard drive to GPT and had to switch it back before I could boot Windows again.  Gparted worked to fix that without losing anything.

Aye.  Just download the Media Cosmos Tool and it will let you download an ISO file for the current version of Windows ten (version 1709, build 16299.15).  You can likewise have the Tool straight create a bootable USB stick with version 1709 of Windows on it.  If you already accept this ISO file, a utility called Rufus can exist used to create a bootable USB stick (8GB minimum size thumb bulldoze required).http://rufus.akeo.ie

The steps to set up things will be:

• commencement create the UEFI-bootable USB stick (it will have a FAT32 format, rather than NTFS) using Rufus or Media Cosmos Tool
• Restart the calculator and tap F2 to enter BIOS. Switch to UEFI mode.  Go out Secure Boot disabled for now if that is an selection.
• Exit and information technology volition restart with the bootable thumb drive inserted.  This time try tapping F12 which usually gives a boot menu. The USB should prove up in the list, if it has been created right for UEFI.
• Once Windows Setup loads the get-go screen, utilise SHIFT-F10 to get a Command Prompt window.
• Now nosotros tin attempt to run MBR2GPT to catechumen the disk.
• Beginning, MBR2GPT can validate that conversion is possible:
  • mbr2gpt /validate
  • assuming information technology validates OK:
    • mbr2gpt /convert
• Type
  exit
  to render to the Windows setup screen or just shut the Command Prompt window.
• Cancel Windows setup past closing the setup window and allow the estimator restart to your existing Windows build 10240
• Once back in Windows, your disk should now be capable of upgrading to build 1709.
• Version 1803 of Windows 10
  will exist released this month or in April.  If yous want to wait to upgrade straight to that, information technology would be fine to do that.  Meanwhile, you are now running in UEFI manner.  There is a take chances that you might exist auto-upgraded by Windows Update to version 1709 anyway, and then upgrading now is fine too.
• To upgrade now, from within Windows run
  setup.exe
  from your mounted ISO file or USB stick.  Do non boot from the install media to upgrade.
• Y’all can also now tap F2 during boot to enter BIOS and enable Secure Boot

Hi.

Converting the deejay to GPT-partitioning organisation is not plenty, I gauge. He should also create EFI organisation division ( 100 MB in size ) and format it in FAT32 file arrangement and then 16 MB MSR ( Microsoft Reserved Arrangement ) division unformatted before he attempts to repair Windows boot files for UEFI installation.