New
#50
Easy BCD beets writing a short story in advanced boot menu or changing boot.ini in older systems.
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.
"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.
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=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.
I can wait an extra day or two. It will be interesting to see when the ISO's go up on MSDN though.