Dual boot: Problem reinstalling W10

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  1. Posts : 22
    Windows 7 (original) and W10
       #1

    Dual boot: Problem reinstalling W10


    I can see there are many posts here about dual boot systems and various problems that can come up. I haven't been able to find info that seems to fit my particular problem, so I'm posting my question:

    I need to reinstall W10 on my dual boot W10/W7 desktop because of problems. The routine I've used before to install W10 isn't working this time:

    --With the installation DVD in the DVD drive, and temporarily having boot from disk as the first option in the BIOS, I "click any key" to boot from the disk and the W10 window logo comes up as expected.

    But then nothing else happens. The progress spinner that should show up below the logo never comes up. I have to abort.

    The above is exactly what I've done twice before to install W10. The spinner has always appeared and then I step through the install process including being able to tell it where I want W10 installed.

    Because of this install failure, I tried a different method to see what would happen. Instead of trying to boot from the disk, I clicked to execute the install from the DVD after I had W7 up and running. The expected windows were popping up, user agreement et al. BUT I was afraid to go beyond the screen I'm posting a screenshot of. It's the last window before "install" -- As per the info I've read online I'm thinking that if I click to proceed from there, W10 will install itself on top of my W7 partition without asking me where I want it to install.

    Is that correct? Or am I wrong, and it's actually safe to go past this window because the installer will see that this is a multi-partition computer system?

    My understanding is that the only way to get the "Where do you want to install?" window is by booting from the disk which gives you completely different installation windows. But, as I said at the top, for some unknown reason that isn't working this time.

    Ideas? Is there yet another way to use my disk and reinstall W10 where I want?

    RB
    Attached Thumbnails Attached Thumbnails Dual boot: Problem reinstalling W10-w10-installer-screen.jpg  
      My Computer


  2. Posts : 6,245
    Windows 11 Pro - Windows 7 HP - Lubuntu
       #2

    Did you try to clean the DVD? What version is on the DVD?

    Is the current Win 10 and Win 7 on same drive?
    Is the drive a Legacy-MBR or EFI-GPT?

    Why don't you make a USB boot able Win 10 installation drive?
      My Computers


  3. Posts : 22
    Windows 7 (original) and W10
    Thread Starter
       #3

    Megahertz said:
    Did you try to clean the DVD? What version is on the DVD?

    Is the current Win 10 and Win 7 on same drive?
    Is the drive a Legacy-MBR or EFI-GPT?

    Why don't you make a USB boot able Win 10 installation drive?
    Thanks for your reply, Megahertz.

    The DVD is clean and loads fine if I start to run it with W7 up and running. That's how I took the screenshot. I'm pretty sure if I clicked Install on that windows I posted, I wouldn't have a choice where W10 would be installed. Correct? - That's why I'm trying to install from boot which is what I've done twice before. The most recent time I reinstalled W10 this way was just one month ago. I'm needing to re-do it because something funky must have happened during the installation.

    I don't know what version of W10 it is. It's what I burned last year when I first changed my computer to dual boot.

    So it's a dual Windows set-up, W7, and W10. It's what I've had up and running for over a year. There are 4 partitions on the one drive, one is where W10 has been. I reformatted that partition before trying to reinstall W10, so right now I have just my old W7.

    The drive is Legacy-MBR.

    Is there an advantage to use a USB drive instead of a DVD? I didn't think of trying that since what I'm trying right now has always worked.

    Something must have changed in my W7 that makes it unable to boot from this disk now. What could it be?

    RB
      My Computer


  4. Posts : 18,424
    Windows 11 Pro
       #4

    Run setup.exe found in the Sources folder on the DVD rather than the root folder of the DVD.

    Also, are you sure you allowed enough time when booting from the DVD for setup to load? It can take quite a while from DVD.
      My Computer


  5. Posts : 22
    Windows 7 (original) and W10
    Thread Starter
       #5

    NavyLCDR said:
    Run setup.exe found in the Sources folder on the DVD rather than the root folder of the DVD.

    Also, are you sure you allowed enough time when booting from the DVD for setup to load? It can take quite a while from DVD.
    Thanks for the reply, NavyLCDR

    Yeah, I saw that info online about running the setup.exe in the Sources folder instead of the main exe file. It started but then disappeared. I'll try it again, though, because I saw screenshots that showed the option of where to install comes up this way, and that's what I need. Good - I'll try again and give it more time.

    If that doesn't work, then I'll try again to boot from the DVD as you also suggest. I've tried several times always with the same result - just the logo with nothing else happening. I gave it 1/2 hour last time. If I try this again, I'll just let it sit there and check on it every hour or so I guess.

    Thanks again. If I have success at some point, I'll edit this thread.
      My Computer


  6. Posts : 18,424
    Windows 11 Pro
       #6

    1/2 should be long enough. If you can't run setup.exe from the sources folder, your DVD is bad.
      My Computer


  7. Posts : 22
    Windows 7 (original) and W10
    Thread Starter
       #7

    NavyLCDR said:
    1/2 should be long enough. If you can't run setup.exe from the sources folder, your DVD is bad.
    Hi Navy - Yeah, with nothing working, it's logical that the DVD could be bad. That's mysterious, though. I did a reinstall one month ago with this disk, and it's been kept safely in a sleeve ever since. Also, if I try to run the installation from the DVD's root folder, it all goes smoothly - it's ready to install W10, as per my original post. I stop it there, though, because I'm pretty sure it would wipe out my W7 partition if I let it go ahead and install. Right?

    I don't think there's another way to try an installation method that gives you the option to direct the install to a particular partition. - I haven't tried to download W10 again since doing that in January of 2020. I guess it's possible for me to do that since I have my Windows Key # at hand here?
      My Computer


  8. Posts : 18,424
    Windows 11 Pro
       #8

    You can do a clean install to the appropriate partition by using DISM to apply the Windows 10 image to it.
    Apply Windows Image using DISM Instead of Clean Install
      My Computer


  9. Posts : 22
    Windows 7 (original) and W10
    Thread Starter
       #9

    NavyLCDR said:
    You can do a clean install to the appropriate partition by using DISM to apply the Windows 10 image to it.
    Apply Windows Image using DISM Instead of Clean Install
    Hey, wow - I haven't heard of this. Thanks! - Lots of info on that page. I'll go through it when I'm fresh in the morning and hopefully I'll end up with a functioning W10 partition. Thanks much!
      My Computer


  10. Posts : 6,245
    Windows 11 Pro - Windows 7 HP - Lubuntu
       #10

    RBowser said:

    The DVD is clean and loads fine if I start to run it with W7 up and running. That's how I took the screenshot. I'm pretty sure if I clicked Install on that windows I posted, I wouldn't have a choice where W10 would be installed. Correct? - That's why I'm trying to install from boot which is what I've done twice before. The most recent time I reinstalled W10 this way was just one month ago. I'm needing to re-do it because something funky must have happened during the installation.
    To install from a DVD you boot into WinPE and then run setup. From win 7 you run setup directly. They do the same thing but the way is different. It seems you aren't able to boot into WinPE from the DVD. That is why I asked if the DVD is clean.

    The Kari tutorial use the boot able Win 10 install media to apply the image. You can do it under Win 7 but my suggestion is to build a Win 10 installation USB drive.

    If you have a 8G USB drive or bigger, let MCT create it for you.
    MCT will create a USB boot able drive with latest Win 10 20h2.
      My Computers


 

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