You would have to install Windows 7 first and then install 10 on a separate
drive.
There are various ways to do this, some which eliminate more problems than
others.
Whatever you do, I wouldn’t recommend installing them on the same drive with 2
partitions; windows 10 makes various changes that on any given update could
cause windows 7 to be unhappy or not boot; MS is trying to shub windows 10 down
everybody’s throat, so they can meet their target of userbase. They’re just
unhappy that Apple is giving away free copies of their OS and are doing quite
well still, and it has actually increased their ecosystem. This is what MS is
now trying to get, people to fall into their ecosystem; windows PC, windows
phone, Xbox for the livingRoom etc.
Anyways, you could install windows 7 on 1 drive, and while that drive is
online, install windows 10 on a second drive. The point is to let windows 10
installer access the win 7 drive during install, so it can create an entry for
windows 10 in the boot partition/loader.
This works, however note that any changes made to the master boot record or EFI
partition could cause 1 or both OS to not boot, since they are sharing the same
MBR/EFI.
My setup when doing tests and dualboots for testing is to use the motherboard
BIOS/UEFI to do it.
In this case I just ad a second drive, take my main drive offline, and install
the OS I’m testing on it’s own drive with its own boot partition, as if it was
a fresh install, which in essence it is. Now, when I want to boot that OS, I
just select the drive that Has the OS on it at boot from the quick boot menu.
This let’s me test the OS, reinstall as many times as I need to with no risk of
messing up boot records or EFI on my main drive, and the 2 OS’s never touch
each other since there’s nothing linking them. This is how I will be testing
win 10 in the near future, once I can get a spare SSD to put in my DAW.
If you are going to have them share a single boot partition, you MUST install
the older OS first. So it would require a reinstall of windows 10. For those
who are using laptops and can’t use multiple drives, you might not have any
other choice but to partition and install that way, however be very careful and
make constant backups of Important data.
HTH, D!J!X!
From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Phil Muir
Sent: Tuesday, December 22, 2015 9:41 AM
To: ddots-l@xxxxxxxxxxxxx
Subject: [ddots-l] Re: Windows 10 Classic Theme
Wouldn't recommend it. Seem to remember seeing posts about this on the MIDIMag
list. Something about Windows 10 checking hard disks. I know some folks are
running systems with drives that can be popped out. Duel booting could still be
an option although haven't had a chance to explore this as an option
personally. What do you think DJX?
On 22 December 2015 14:32:17 GMT+00:00, Roger Baccus <rogerbaccus@xxxxxxxxx
<mailto:rogerbaccus@xxxxxxxxx> > wrote:
How complicated is it to have a multiboot system with Windows 7 installed after
Windows 10 is already in place? Maybe that is the way I should go. Are there
any drawbacks to this idea?
--
Regards,
Accessibility Training
Telephone: UK +44-1747-228-459
Mobile: UK +44-7968-136-246
E-mail:
info@xxxxxxxxxxxxxxxxxxxxxxxxxxx <mailto:info@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
URL:
http://www.accessibilitytraining.co.uk
