Windows 7 Clean Install [Upgrade DVD] Bootcamp?

Discussion in 'Windows, Linux & Others on the Mac' started by MrAnon, Sep 2, 2011.

  1. MrAnon, Sep 2, 2011
    Last edited: Sep 2, 2011

    macrumors newbie

    Sep 2, 2011
    I have a copy of Vista, and I also have an Upgrade Edition of Windows 7 Ultimate.

    It would be a pity to waste the Vista license just so I can use Windows 7 in Bootcamp, and I want to avoid it if necessary.

    I have a previous copy of Windows, so this isn't against the forum rules is it? If it is, mods then close this thread!

    I've heard of clean installs with the upgrade disc and modifying the registry key OOBEInstall, but how would I go about doing this through Bootcamp?

    Apparently another method involves not entering a product key, and then installing Windows on top of itself again with a product key, then it upgrades from itself? Is this possible in Bootcamp?

    Previously all you had to do was insert the old OS disc and the upgrade disc would work!

    PS: My MacBook Pro Early 2011 with Lion & Bootcamp 4.0 doesn't support Vista, so I can't put that on anyway!
  2. Quad5Ny, Sep 2, 2011
    Last edited: Sep 2, 2011

    macrumors 6502a

    Sep 13, 2009
    1. Download Official Windows 7 SP1 x64 ISO (This way you don't have to waste half an hour upgrading to SP1 after the install)
    2. Burn ISO to DVD or Make Thumb Drive
    3. Run Boot Camp Assistant
    4. Install Windows 7
    5. Go through the Windows 7 User setup wizard and click "Skip" on the Product Key entry dialog
    6. In the Start Menu search box type "regedit.exe" and press Enter
    7. Navigate to "HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE/"
    8. Double click "MediaBootInstall" and change it from "1" to "0"
    9. Close Regedit
    10. In the Start Menu search box type "cmd" then Right click on the result and choose "Run as administrator"
    11. In the now open Command Prompt type "slmgr /rearm" (and wait for it to finish)
    12. Restart
    13. In the Start Menu search box type "activate" and press Enter
    14. Follow the wizard and enter your Product Key to activate
    15. Install Boot Camp Driver Package
    16. Run Apple Software Update until there are no updates left
    17. Run Windows Update until there are no updates left
    18. Run Disk Defragmenter Once (skip this step if you have a SSD)
    19. Restart
  3. thread starter macrumors newbie

    Sep 2, 2011

    OK, thanks for that Quad5Ny!

    Sounds great - I'll have a go later!

  4. thread starter macrumors newbie

    Sep 2, 2011
    Working 100%

    Works like a charm - activated perfectly!

    Cheers Quad5Ny!!! :D
  5. macrumors member


    Apr 10, 2011
    This is my question exactly, except I have an original copy of XP that isn't used anymore and an upgrade of Win7 Ultimate that is no longer used. I didn't want to install xp (old, no service packs) then upgrade. I'm downloading the file from DR right now...hope it works.

  6. macrumors member


    Apr 10, 2011
    This worked perfectly for me as well. Simple, yet effective. How about making it a sticky?

  7. B0untyHunterSC, Jun 18, 2012
    Last edited: Jun 18, 2012

    macrumors newbie

    Jun 18, 2012
    I have no internet when trying to put in activation key
  8. macrumors 6502a

    Sep 13, 2009
    Install the boot camp driver package and restart first (after step 12). That way your network adapters are working.

    Or you can activate over the phone.
  9. macrumors newbie

    Jul 24, 2012
    That is one elegant solution!
    Thanks for bringing a frustrating few hours to a successful conclusion.
  10. macrumors newbie

    Jul 29, 2012
    Where do I run the Apple software update, #16?

    I believe I need to run the disk defragmenter per number 18. I just bought an iMac.
  11. macrumors 68030

    Dec 24, 2010
    Olympia, WA
    Should be in the Programs menu in the start menu after you install and restart. And yes, run the defragmenter because you probably have a regular hard drive. Try downloading Auslogics. It's a freeware disk defragmenter that I've had slightly better luck with compared to the built-in one.
  12. macrumors 68000


    May 11, 2009

    I just did a custom install the first time and then did the upgrade the second and Windows activated without a problem. Did not have to use the command prompt at all.
  13. macrumors newbie

    Jul 29, 2012
    I did finish it up. It worked like a charm. Sure am glad I didn't buy a new full version!

    I was then able to install my RealFlight 6 simulator!!!!
  14. macrumors newbie

    Jun 17, 2011
    I burned the .iso from that link to a DVD but bootcamp still claims "the installer disc could not be found." What gives?
  15. macrumors 68030

    Dec 24, 2010
    Olympia, WA
    Yeah that's another proven method. The method mentioned above simply tricks windows into thinking that the upgrade was started from within Windows instead of booting from a disk. So basically by installing first you're having windows do the registry edits for you :)
  16. macrumors newbie

    Sep 29, 2012
    Much Thanks

    Just wanted to say many thanks for posting the instructions on how to use the upgrade disc for a clean install. I just used it to install Win 7 on my new iMac with it's shiny new 3TB drive (now that said drive is supported).


  17. macrumors newbie

    Jul 28, 2013
    I am having difficulty with step 10. When I right click on "cmd", I do not get "run as administrator" as an option. The last line is C:\Users\Brent>. We just got the MacBook Pro and I am the only user.

    Thank you for your assistance in advance.
  18. macrumors 68000

    Mar 4, 2013
    Go into the start menu, all programs, accessories, then right click on command prompt and select "run as administrator."
  19. macrumors newbie

    Jul 28, 2013
  20. macrumors newbie

    Sep 8, 2013
    Should this method work on my MBP? It's a mid-2010 model. I just want to double check before I try it because I've set out to try other things without covering all my bases more than once..

    Also, does this method work regardless of if I use a disc or an ISO? Given my model, creating an ISO through Boot Camp 5 is not an option. Perhaps, this isn't the only way, though. I've created disk images on a flash drive before.
  21. macrumors 68000

    Mar 4, 2013
    In general, this method will work regardless of the media used. However, in the case of a recent MacBook Pro with a built-in SuperDrive, you need to use that in order to install Windows (yes, there are workarounds if you don't want to use a DVD but they are time consuming and results are not guaranteed). Take the downloaded .iso and burn it to disc using the ISO 9660 format versus UDF.
  22. hodda, Sep 13, 2013
    Last edited: Sep 14, 2013

    macrumors newbie

    Jan 2, 2013
    Hi old thread reinvigorated recently but im trying to do this as well - I have a win 7 retail upgrade with key but DL the link with SP1 etc so have got the ISO of the upgrade on a USB, start bootcamp assistant and it starts to install and gets to the first screen setup ie the default or custom etc

    if I choose default installation: it states that the bootcamp partition 4 cannot be installed to / upgraded to as it is not NTFS formatted

    If I choose custom it states something like "you have started installation with disc, remove disc, close down and then try again bla de bla" but if I do this it goes to black screen "no bootable disk"

    Anyone know what to do? Apologies can follow instructions but this has stumped me as not massively tech savvy!

    I was such a dumbass, already had a few beers by this time last night, forgot I had to instruct a format of the partition!! - anyway sorted now by following this and all done - brill!
  23. macrumors 68030

    Dec 24, 2010
    Olympia, WA
    Yeah it works regardless. The only thing that this method does is make windows think that you triggered the "upgrade" from windows rather than booting from the disk directly.
  24. macrumors member

    Sep 26, 2012
    I have exactly the same situation but with a Win 8 upgrade licence and previous copy of both Win 7 (32bit) and Win XP - what should I do?

    Is it the same as above but using a Win 8 ISO - if so how do I get that?

  25. macrumors 6502a

    Nov 25, 2012
    Since you have a valid Windows 8 product key, you have to use a computer running Windows 64-bit (or 32-bit) to download a copy of Win 8 64-bit (or 32-bit) ISO as explained in this guide.

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