Clean install w10 from w8

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  1. AddRAM's Avatar
    Posts : 3,848
    Windows 10 Pro x64 20H2
       #11

    Because it sounds like you are trying to boot normally and you are not booting in UEFI, if your disk is GPT then you have to boot UEFI.

    Use the boot menu to bring up your boot options, do you see a UEFI option for your USB stick ? or dvd ? Whatever you're trying to use.

    That`s what you have to choose.

    And I think you need to delete all the partitions except for your data partition so the installer can create the partitions it needs to. DON'T delete your data partition.


    Navy already said this in reply # 3


    The only thing I disagree with (and I say this loosely) is that you shouldn't have to make any changes in the Bios other then maybe secure boot (disable it)

    If your W8 install was UEFI/GPT then you should not have to make any changes to the Bios.
      My Computers


  2. Posts : 12
    Windows 8
    Thread Starter
       #12

    AddRAM said:
    Because it sounds like you are trying to boot normally and you are not booting in UEFI, if your disk is GPT then you have to boot UEFI.

    Use the boot menu to bring up your boot options, do you see a UEFI option for your USB stick ? or dvd ? Whatever you're trying to use.

    That`s what you have to choose.

    And I think you need to delete all the partitions except for your data partition so the installer can create the partitions it needs to. DON'T delete your data partition.


    Navy already said this in reply # 3


    The only thing I disagree with (and I say this loosely) is that you shouldn't have to make any changes in the Bios other then maybe secure boot (disable it)

    If your W8 install was UEFI/GPT then you should not have to make any changes to the Bios.
    Ok sure i'll try booting from Boot menu once again as I tried last night using boot menu and selecting DVD it was still giving me - Windows cannot be installed to this disk. The selected disk is of the GPT partition style." error
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  3. AddRAM's Avatar
    Posts : 3,848
    Windows 10 Pro x64 20H2
       #13

    You have to choose UEFI dvd, not DVD, you should see 2 selections.

    This is just an example of a usb stick, but you can see the 2 choices.

    If I had a dvd in the tray, then I would have 2 options for that too.

    The reason both show up for me is because I have the option Legacy & UEFI boot in my Bios, I could just set it to Legacy or UEFI, but I just leave it the way it is. Even though I always install in Legacy mode.
    Attached Thumbnails Attached Thumbnails Clean install w10 from w8-boot-menu.jpg  
      My Computers


  4. Posts : 12
    Windows 8
    Thread Starter
       #14

    AddRAM said:
    You have to choose UEFI dvd, not DVD, you should see 2 selections.

    This is just an example of a usb stick, but you can see the 2 choices.

    ok thank you so much for the detailed screenshot, I'll give it a try once I reach home in couple of hours..
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  5. AddRAM's Avatar
    Posts : 3,848
    Windows 10 Pro x64 20H2
       #15

    Once you understand the UEFI Boot/GPT Disk......... Legacy Boot/MBR Disk concept it'll all make sense :)

    Keep us posted on your progress.
      My Computers

  6. cereberus's Avatar
    Posts : 12,014
    Windows10
       #16

    If you create a usb flash drive using media creation tool, and use that , it will automatically instal the correct version.
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  7. Caledon Ken's Avatar
    Posts : 24,214
    Windows 10 Pro x64 Version 2004
       #17

    First use the link I gave you and create a boot disk. Get your data off machine. Once your data is safe you can proceed without fear of losing things. If you don't have second computer find a friend.

    What kind of computer do you have? Make model

    Was it store bought or did you build?
      My Computer


  8. Posts : 12
    Windows 8
    Thread Starter
       #18

    Clean install w10 from w8-1502903791935.jpgClean install w10 from w8-1502903801856.jpgClean install w10 from w8-1502903810814.jpgClean install w10 from w8-1502903817862.jpg

    Hi again,
    Below are the attached Images of the process that I'm following..
    So if I go in bios and select uefi and save the settings, my pc constantly restarts without reading the disc and attempting a repair (which is Impossible ofcourse as there is no os in the system) when the change the settings back to legacy support then I can go in boot menu and select the options as I'm using DVD to Install so I selected DVD option (I dint noticed UEFI there as you can see in the attachment) it takes me to the installation guide, tells me to select 64bit or 32bit, I selected 64 bit as per my system conf. And then it asked me for partition( shows me 7 partitions in total) but cant select any as it says the disk is in GPT format. Also there is no problem with the disk as my friend used the same disk on his brand new laptop, he never got this error but as I already have an os Installed, it is showing this error..

    Ken, my laptop is G50-45 80E300GYIN with AMD A8-6410 processor Clocked at 2GHZ 4gb ddr3 /500gb sata 2gb graphics with DOS which I upgraded to w8 with zero issues but now I'm stuck and I purchased this online about 2 years ago
    AddRAM said:
    Once you understand the UEFI Boot/GPT Disk......... Legacy Boot/MBR Disk concept it'll all make sense :)

    Keep us posted on your progress.
      My Computer

  9. NavyLCDR's Avatar
    Posts : 15,515
    Windows 10 Pro
       #19

    With boot mode set to UEFI, move the SATA ODD to the top of the priority list, before the HDD. If you get setup going that way, when the computer restarts during the setup process, just remove the DVD and reboot the computer and setup will continue from the hard drive.
      My Computer

  10. Caledon Ken's Avatar
    Posts : 24,214
    Windows 10 Pro x64 Version 2004
       #20

    Thanks for the make model. So this is a Lenovo and when you say bought online, with DOS, I assume you mean you bought a pre-owned laptop. I guess the original owner deleted the recovery partition, correct?

    I realize this may already be in thread but.....

    Where did you get your copy of Windows 10? You said you are using Disc. Using the Windows Media Creation tool to create a bootable USB copy of 10 might ensure you that you have correct software formatted correctly on a USB key.

    Something to consider after trying NavyLCDR's and other members guidance.
      My Computer


 
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