Windows 10: Install Windows 10 as dual boot without USB or DVD

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  1. Posts : 8
    Windows 7/10/Ubuntu
       18 Aug 2015 #11

    Williams said: View Post
    How windows RTM related with your problem. ?
    RTM = Release to Manufacturing. I've always read it as Released to Market meaning it's "good to go" or stable. There are differences between Technical Preview (Alpha/Beta) and RTM. The link I sent him referred to a Tech preview which had the ability to do side-by-side installations. Which would of been the solution to his problem.
      My ComputerSystem Spec

  2.   My ComputerSystem Spec

  3.    18 Aug 2015 #13

    No it doesn't. I already checked it. Windows 10 RTM setup doesn't give me the option to do a custom installation.
      My ComputerSystem Spec

  4. Posts : 3,506
    Win_8.1-Pro, Win_10.1607-Pro, Mint_17.3
       18 Aug 2015 #14

    nushydude said: View Post
    I have the Windows 10 Pro ISO with a Windows 10 key. (from MSDN)
    I want to install Windows 10 as dual boot with Windows 8.1. Both are x64.
    Is it possible to install Windows 10 from the ISO? I know you can upgrade that way. But I want to do a clean install AND install alongside Windows 8.1.
    See Windows 10 - Clean Install - Windows 10 Forums

    You need to boot the install media, not launch setup from a running Windows.

    Step 7 enter your Win10 MSDN key
    Step 10 ... there is a custom install - I've done it.

    You won't have to clean the drive , but the partition should be unallocated / unformatted.
    Delete the D:\ partition you created (D:\ = primary = to be used for Windows 10 to install Windows 10)
    either in the custom step or before you begin the install
    Then select the unallocated space in step 10 (you can shrink it later if it's too big)

    Good luck ... it's easy
      My ComputerSystem Spec

  5.    18 Aug 2015 #15

    nushydude said: View Post
    No it doesn't. I already checked it. Windows 10 RTM setup doesn't give me the option to do a custom installation.
    I know it works this way. But I can't make install media. (This is work PC, and it doesn't have a DVDRW and we cannot use USB drives) :-/
      My ComputerSystem Spec

  6. Posts : 3,506
    Win_8.1-Pro, Win_10.1607-Pro, Mint_17.3
       18 Aug 2015 #16

    Ok, beats me how you'll accomplish this then. If it's a work PC, contact your IT department.
      My ComputerSystem Spec

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