Install Win 8 out of a running Win 7 and keep drive letter assignments?

Discussion in 'Windows 8' started by Zaphire, Jun 10, 2012.

  1. Zaphire

    Zaphire MDL Novice

    Apr 14, 2009
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    You used to be able to install Win 7 from an already running Win 7 to another drive and keep your drive letter assignments. i.e. Say you were running Win 7 on C: and you wanted another installation on D: with Win 7 installed as D:
    You insert a DVD or USB Key and ran setup and direct the new install to D:
    The second install would have a drive letter D:

    You do not seem to be able to do this with Windows 8

    Is there any way this can be achieved?
     
  2. roirraW "edor" ehT

    roirraW "edor" ehT MDL Addicted

    Sep 1, 2007
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    I wish I had an answer, I'm with you. I noticed that because at least 50-75% of the time I reinstalled Windows versions in the past (from XP on) I would start the installation from within the previous one (if still working) in order to keep my drive letter assignments. Not a deal killer since I can normally reassign them after, but it made it easier, anyway.
     
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  3. avnerk

    avnerk MDL Novice

    Sep 22, 2009
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    #3 avnerk, Jun 12, 2012
    Last edited: Jun 12, 2012
    Yes there is a way :)
    Instead of running setup.exe from the root of the installation dir,
    there is a setup.exe inside the 'sources' folder.
    run it from there and u can decide to which partition to install it to
    and it will keep your drive assignments
     
  4. HALIKUS

    HALIKUS MDL Addicted

    Jul 29, 2009
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    #4 HALIKUS, Jun 12, 2012
    Last edited by a moderator: Apr 20, 2017
    Backup your drive names \ numbering, and your shared folders. Then just run the reg after the install and reboot. Put this in a bat or cmd file.
    This works in Win7, i don't see why it wouldn't work in Win8.


    Code:
    @echo off
    REGEDIT /E "1_Drive_names_Backup.reg" "HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices"
    REGEDIT /E "2_Shares_Backup.reg" "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Shares"
    
    thanks for the tip, superbubble.
     
  5. SuperBubble

    SuperBubble MDL Member

    Nov 18, 2011
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    #5 SuperBubble, Jun 13, 2012
    Last edited by a moderator: Apr 20, 2017
    Wrap 'em up in [\CODE][/\CODE] tags (remove the backslashes).

    Code:
    And enjoy your unformatted, monospaced results! :)
    Bonus edit for Halikus: You're welcome. :)

    Bonus bonus edit for Halikus:

    Tested and works on Windows Server 2012 RC.
     
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  6. sadsac

    sadsac MDL Junior Member

    Dec 5, 2007
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    There is a downside to installing this way. If the hard drive dies and you've imaged the partitions, upon restoration to a new hard drive, the non-C OS will likely be mucked, because the non-C drive letter will be entrenched throughout the OS that boots from non-C, yet because of the new hard drive, the the non-C OS will try to boot as C now. I've never found an easy way around this, including saving the drive assignments from the registry. That doesn't work because the replacement hard drive with have a new hardware identifier as recognized by OS like win7. I always install each MS OS as C now.
     
  7. DesertJerry

    DesertJerry MDL Novice

    Apr 11, 2010
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    Tried it - did not work; ended up with Win8 installing itself on C:\ - which is NOT what I had selected. For now I can live with it but if the final does not include a real Custom install option then I will not move to Win8.