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  1.    05 Jul 2015 #51
    Join Date : Jul 2014
    Serbia
    Posts : 10,594
    W10 Insider + Linux

    Quote Originally Posted by Gary View Post
    This is basically what I do.
    Better safe than sorry.
      My ComputersSystem Spec
  2.    05 Jul 2015 #52
    Join Date : Jan 2015
    Texas
    Posts : 219
    Win 10 Pro 64 bit

    Quote Originally Posted by Gary View Post
    This is basically what I do.
    Exactly. I learned long ago to eject the other disks prior to installing a new OS. I have never had to use EasyBCD but have it just in case.
      My ComputerSystem Spec
  3.    05 Jul 2015 #53
    Join Date : Jul 2014
    Serbia
    Posts : 10,594
    W10 Insider + Linux

    Easy BCD beets writing a short story in advanced boot menu or changing boot.ini in older systems.
      My ComputersSystem Spec
  4.    05 Jul 2015 #54
    Join Date : Jan 2015
    Texas
    Posts : 219
    Win 10 Pro 64 bit

    Quote Originally Posted by CountMike View Post
    Easy BCD beets writing a short story in advanced boot menu or changing boot.ini in older systems.
    Luckily mine has worked perfectly the first time but I have read other posts where EasyBCD saved the day.
      My ComputerSystem Spec
  5.    05 Jul 2015 #55
    Join Date : Sep 2014
    Posts : 91
    64-bit 10240 10 Pro

    Quote Originally Posted by CountMike View Post
    Easy BCD beets writing a short story in advanced boot menu or changing boot.ini in older systems.
    I tried using this and it worked until a new build was updated in Windows 10. Then I could not boot into Windows 7. So I went to the external Hard Drive route with 10162 and it IMHO is the best method to use.
      My ComputerSystem Spec
  6.    05 Jul 2015 #56
    Join Date : Oct 2014
    Posts : 1,555
    W7 32 bit, Linux Mint Xfce 18 64 bit
    Thread Starter

    Since everyone's talking about.
    It actually the upgrading to 10 preventing the dual boot whether using 7 oem or 7 retail version. Clean install of 10 worked without issue I install it differently so I can use Grub and Xubuntu.

    My old setup
    Windows 7 primary partition 1
    Windows 10 primary partition 2 upgraded from windows 7
    Xubuntu logical partition 5
    Linux swap partition 6

    My other setup didn't work. I don't know if this will work

    Here is the setup I am going to try. I will move my windows 7 oem from partition 1 to partition 2, upgrade to 10, download the rtm, install it. Then get the windows 10 rtm install iso from Microsoft and do a clean install if that still works.


    Potential

    Windows 7 primary partition 1 Retail or oem
    Windows 10 primary partition 2 clean install
    Xubuntu logical partition 5
    Linux swap partition 6


    Or

    Windows 7 primary partition 1 (Retail or oem)
    Windows 10 primary partition 2 upgraded from windows 7 to 10162 then to another build then put 7 back on.
    Xubuntu logical partition 5
    Linux swap partition 6


    It seems when you upgrade from a w10 build to another build it changes the boot sector. So, when you you re-image partition one you should be able to put windows 7 back on and it should work but who knows. The reason is we have to conflicting boot sectors competing with each other.

    I hope you can follow what I did or want to try.
      My ComputerSystem Spec
  7.    05 Jul 2015 #57
    Join Date : Jan 2015
    Texas
    Posts : 219
    Win 10 Pro 64 bit

    "It seems when you upgrade from a w10 build to another build it changes the boot sector. So, when you you re-image partition one you should be able to put windows 7 back on and it should work but who knows. The reason is we have to conflicting boot sectors competing with each other".

    That's correct but I have never tried messing with partitions on the same drive. I have separate SSD's for all the OS and when it's time to upgrade a build or install another OS, I eject all the other drives so the boot sector changes on the Win 10 drive only. So far have not had an issue doing it this way. That being said the first time I did this I didn't have the removable drives and my boot sectors were all jacked up. Report back how your system worked.
      My ComputerSystem Spec
  8.    05 Jul 2015 #58
    Join Date : Sep 2014
    Posts : 91
    64-bit 10240 10 Pro

    The Best way is not to allow Windows 7 and Windows 10 to be on the same Hard Drive. As I stated it is best to use an external device for Windows 10. This method for me, has been the only one that works. If you update Windows 10, it does nothing to Windows 7 boot this way.
      My ComputerSystem Spec
  9.    05 Jul 2015 #59
    Join Date : Jan 2015
    Texas
    Posts : 219
    Win 10 Pro 64 bit

    [QUOTE=Gary;271651]The Best way is not to allow Windows 7 and Windows 10 to be on the same Hard Drive. As I stated it is best to use an external device for Windows 10. This method for me, has been the only one that works. If you update Windows 10, it does nothing to Windows 7 boot this way.[/QUOTe

    Or have all OS on different HD's and disconnect the others prior to installing or upgrading. You need to have a disconnect system however to alleviate opening your case to disconnect the drives. If not then the external device system would be better.
      My ComputerSystem Spec
  10.    05 Jul 2015 #60
    Join Date : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 10,580
    Windows 10 IoT

    I can wait an extra day or two. It will be interesting to see when the ISO's go up on MSDN though.
      My ComputerSystem Spec

 
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