Windows 10: Dual Boot Windows 10 with Windows 7 or Windows 8  

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  1. Posts : 92
    64-bit 10240 10 Pro
       02 May 2015 #60

    I followed the instructions and my Windows 10 label is E: Windows 7 is C: . I used a partition on the same disk.
      My ComputerSystem Spec


  2. Posts : 20,864
    64-bit Windows 10 Pro build 16199
    Thread Starter
       02 May 2015 #61

    Hello Gary,

    Normally, whatever OS you are currently running will have it's drive/partition as C.

    If you boot into Windows 10, does it show as C?
      My ComputersSystem Spec


  3. Posts : 92
    64-bit 10240 10 Pro
       02 May 2015 #62

    Brink said: View Post
    Hello Gary,

    Normally, whatever OS you are currently running will have it's drive/partition as C.

    If you boot into Windows 10, does it show as C?
    No it shows as E:
      My ComputerSystem Spec


  4. Posts : 20,864
    64-bit Windows 10 Pro build 16199
    Thread Starter
       02 May 2015 #63

    In that case, please post a screenshot showing the drive layout in your Disk Management while in Windows 10 and Windows 7 to see if it may help show the issue.
      My ComputersSystem Spec


  5. Posts : 92
    64-bit 10240 10 Pro
       02 May 2015 #64

    I can't Shawn, I went back to Windows 7 for awhile. I am probably going to have surgery withing 6 weeks and I will not have time to devote to testing Windows 10. I already know what to expect and I will upgrade to it when it is released or sooner. Thanks for all of your help. I still will post and I may even do a clean install of the next build. But for now it is 7.
      My ComputerSystem Spec


  6. Posts : 14,391
    Windows 10 Insider Preview
       02 May 2015 #65

    Gary said: View Post
    No it shows as E:
    The way to figure this out Gary, is to go into Disk Management and look at the size of the two partitions holding Windows. Write down the size of each one. In my case, Windows 8.1 is installed on Drive C: (479 GB) while Windows 10 is installed on Drive D: (439 GB).

    While in Windows 10, I click on File Explorer>This PC. I see Local Disk (C:\ (439 GB). Drive D:\ now shows to have 479 GB. I don't know how it's done, but Windows switches out the drive names. What was the drive holding Windows 8.1 (in my case) now shows to be the drive holding Windows 10 and what was Windows 10 now shows as the drive holding Windows 8.1.

    Confusing, I know, so I just accept it and go on.
      My ComputerSystem Spec

  7.    02 May 2015 #66

    Gary said: View Post
    I followed the instructions and my Windows 10 label is E: Windows 7 is C: . I used a partition on the same disk.
    That is normal, if you run the setup.exe file in the sources folder to start Windows 10 Setup.

    Quote from this post: link



    edit:

    So, the next time when you start Windows 10 installation.

    - Connect your Windows 10 USB flash drive or insert your Windows 10 DVD.
    - Restart the computer.
    - Press the correct key to enter the boot menu (Esc, F8, F9, F10, F11, F12).
    - Select your USB/DVD from the boot menu.
    - Select the "Custom: Install Windows only (advanced)" option.
    - Select the empty partition on the drive where you want to install Windows 10.
    Last edited by genet; 03 May 2015 at 00:58.
      My ComputerSystem Spec


  8. Posts : 92
    64-bit 10240 10 Pro
       03 May 2015 #67

    genet said: View Post
    That is normal, if you run the setup.exe file in the sources folder to start Windows 10 Setup.

    Quote from this post: link


    edit:

    So, the next time when you start Windows 10 installation.

    - Connect your Windows 10 USB flash drive or insert your Windows 10 DVD.
    - Restart the computer.
    - Press the correct key to enter the boot menu (Esc, F8, F9, F10, F11, F12).
    - Select your USB/DVD from the boot menu.
    - Select the "Custom: Install Windows only (advanced)" option.
    - Select the empty partition on the drive where you want to install Windows 10.
    That is exactly what I did. I could not boot into Windows 7 though. Maybe I should have made 7 the default. I think I may just do what I was doing in the past and clean install Win 10 on a separate disk. I will not put any programs on it othere than a Browser. Except I ran it from with Windows 7 and used the installer from the sources folder. Thanks for all of your help with this everyone!
      My ComputerSystem Spec


  9. Posts : 92
    64-bit 10240 10 Pro
       17 May 2015 #68

    OK I am going to try this again but I have some questions:

    1. When I format the Partition for Windows 10 should I give it a drive letter?
    2. I will be using a DVD to do this.

    I will be back in 15.

    Thanks
      My ComputerSystem Spec

  10.    17 May 2015 #69

    I never give it a drive letter. I get a boot menu with 7 and 8 and then 10. Which ever os I boot then becomes C drive and the other os are available as a D or E whatever. You can access them to pull pics or files drag and drop no problem. I have had no problems lately but did back in Oct. at first. I was able to work it out just like you will be able too.
      My ComputerSystem Spec


 
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