Win 10 Tech

Can Windows 10 technical preview be dual booted?
I have a spare 128 Gig SSD that I can put it on just to try.
I don't want to disturb my Win 8.1 setup on my primary SSD

Regards, Rene

On 8 Oct 2014 15:00, Rene Lamontagne wrote:
Can Windows 10 technical preview be dual booted?
I have a spare 128 Gig SSD that I can put it on just to try.
I don't want to disturb my Win 8.1 setup on my primary SSD

Yes.

Rene Lamontagne wrote:
Can Windows 10 technical preview be dual booted?
I have a spare 128 Gig SSD that I can put it on just to try.
I don't want to disturb my Win 8.1 setup on my primary SSD

Regards, Rene

I used a blank 500GB drive, for the Win 10 install.
There were no other disks present during the install.

After it is installed, I can plug the other OS drives
back in, but I haven't done that yet.

*******

If dual booting, I recommend opening a command prompt
as Administrator. (Start : "cmd.exe" : right click and
Run As Administrator).

In there, enter this. This would be for Win8 or later systems.

powercfg -h off

That turns off hibernation.

That is to prevent the OSes from using kernel hibernation,
so when you select "reboot" from Windows 10, the BIOS will
allow you to select some other drive to boot from. Otherwise,
the hibernate bit is set, and a chance to select a boot drive
is disabled by the BIOS. You will stay "trapped in a loop"
booting Windows 10, until you can figure out how to
"do a complete shutdown". I just turn off hibernation,
so it will not be able to annoy me any more.

*******

In terms of side effects, of modern OSes being next to one another,
you may get spurious "CHKDSK" runs at startup. That's where the
file system doesn't seem to be shut down cleanly, from one OS
run, to the other one running. Since I only ran the Win 10 preview
for five minutes, there wasn't much time for testing old bugs. My
evidence here, seemed to suggest the Win7 Preview OS was spinning down
one of the disks, and the CHKDSK was related to doing an OS shutdown
when a disk was no longer spinning. But others here don[t feel that
is the root cause, and I still don[t really know what made it stop.
I messed around with Power Options a fair bit, so just about anything
might have fixed it. I was more interested in making the symptoms
go away, than anything else :-)

If you see other aberrations, Microsoft is pretty good about including
bad drivers with their install media. It's the fault of the hardware
manufacturer, for not making good drivers, and Microsoft's fault for
not testing the drivers properly. I've had three cases now, traceable
to bad drivers on the install media. This probably won't damage anything,
but could make the preview behave badly. I've had

1) Flashing screen due to video card restart.
Not fixable. No better driver available.
2) Sound output that would "thump" at startup.
Fixed by a driver update.
3) A video card bug where only half of the dual head stuff
was working. A driver update fixed that one. Hardware acceleration
on the second half of the video card is disabled, so that if you
play a game and alt-tab out of the game, the remaining half of
the card no longer is hardware accelerated. Screen redraws are
very slow.

Paul

Rene Lamontagne wrote on 10/8/2014 4:00 PM:
Can Windows 10 technical preview be dual booted?
I have a spare 128 Gig SSD that I can put it on just to try.
I don't want to disturb my Win 8.1 setup on my primary SSD

Regards, Rene
You could load something like the Hyper-v in Win8 or VM Ware Player and
load it in a virtual machine. No formatting or boot manager upset,
just uninstall the VM software and delete the data files they create.
A bit more simple.

On Wed, 08 Oct 2014 15:00:22 -0500, Rene Lamontagne wrote:

Can Windows 10 technical preview be dual booted? I have a spare
128 Gig SSD that I can put it on just to try. I don't want to
disturb my Win 8.1 setup on my primary SSD


Why bother? Wait for the release, or a real customer preview if
there is one.

On 10/9/2014 4:52 AM, mechanic wrote:
On Wed, 08 Oct 2014 15:00:22 -0500, Rene Lamontagne wrote:

Can Windows 10 technical preview be dual booted? I have a spare
128 Gig SSD that I can put it on just to try. I don't want to
disturb my Win 8.1 setup on my primary SSD


Why bother? Wait for the release, or a real customer preview if
there is one.


Thanks Paul, I did turn off hibernation as you suggested and the whole
download and install proceedure went without a hitch.
To Mechanic, I do these things because all my life I have been curiouse
and want to know and learn about everything. so I am in the habit of
bending things till they nearly break :-))
Ferinstance the other day I was trying to eradicate the Snap do rootkit
from my sons PC, In so doing I was checking and deleteing stuff from the
registry of my own PC which is clean and running fine.
Anyway I mucked around till I finaly bluescreened it and Windows
complained and shut the system down. First shutdown in 4 years on this
machine.
By the way I am 80 years old and need to speed up my activities as time
is running out.

Regards, Rene

On Thu, 09 Oct 2014 15:34:16 -0500, Rene Lamontagne wrote:

all my life I have been curiouse
and want to know and learn about everything. so I am in the habit of
bending things till they nearly break

How do you know when to stop?

That's my problem in a nutshell, in trying to do what you suggest :-)

--
Gene E. Bloch (Stumbling Bloch)

On 10/9/2014 4:01 PM, Gene E. Bloch wrote:
On Thu, 09 Oct 2014 15:34:16 -0500, Rene Lamontagne wrote:

all my life I have been curiouse
and want to know and learn about everything. so I am in the habit of
bending things till they nearly break

How do you know when to stop?

That's my problem in a nutshell, in trying to do what you suggest :-)

You gota stop when you say to yourself "just a little more" then say NO,
NO, NO! even so some things do break.

Regards, Rene

On 2014-10-08 18:33, Paul wrote:

If dual booting, I recommend opening a command prompt
as Administrator. (Start : "cmd.exe" : right click and
Run As Administrator).

In there, enter this. This would be for Win8 or later systems.

powercfg -h off

That turns off hibernation.

That is to prevent the OSes from using kernel hibernation,
so when you select "reboot" from Windows 10, the BIOS will
allow you to select some other drive to boot from. Otherwise,
the hibernate bit is set, and a chance to select a boot drive
is disabled by the BIOS. You will stay "trapped in a loop"
booting Windows 10, until you can figure out how to
"do a complete shutdown". I just turn off hibernation,
so it will not be able to annoy me any more.

Tap tap tap Google - Wow, I didn't know hibernation didn't first
dismount and then reload the disks, thanks a lot for the warning!

SuperUser had this to say -

If you want to hibernate and use a different OS while Windows is
hibernated you must not put the Windows bootloader first, contrary to
what @snayob says.

If the Windows bootloader is first, the very first thing it does
before showing the menu is check for a hibernated OS. If a hibernated OS
is found, it will boot into it automatically and will not show you a
menu to choose boot options from. If you force the menu (i.e. F8), the
hibernation data will be deleted.

Now if GRUB is the MBR boot menu and is configured to chainload
BOOTMGR or boot into Linux, you can hibernate Windows and boot into
Linux - but if you mount the NTFS partition, most likely your
hibernation will be lost (detected as corrupted). Basically, if you
hibernate a machine, you must not touch any volumes that were mounted on
that machine (i.e. any FAT32 or NTFS partitions assigned a drive letter
in the hibernated OS).

Ridiculously important note: In the event that you mount (say, in
Linux) a Windows partition while Windows is hibernated and you are
unlucky enough that when you're done with Linux and attempt to reboot
into Windows, Windows does resume from hibernation (instead of erroring
out, throwing away hibernation data and attempting a normal boot), you
will most likely suffer catastrophic data loss to all Windows partitions
as all filesystem-related structures will be out-of-sync between what
Windows has loaded in the memory and what's actually written on the disk.

--
! _\|/_ Sylvain /
! (o o) Member-+-David-Suzuki-Foundation/EFF/Planetary-Society-+-
oO-( )-Oo No purchase required, details inside package.

On Wed, 08 Oct 2014 18:33:26 -0400, Paul wrote:

Rene Lamontagne wrote:
Can Windows 10 technical preview be dual booted?
I have a spare 128 Gig SSD that I can put it on just to try.
I don't want to disturb my Win 8.1 setup on my primary SSD

Regards, Rene

I used a blank 500GB drive, for the Win 10 install.
There were no other disks present during the install.

After it is installed, I can plug the other OS drives
back in, but I haven't done that yet.

*******

If dual booting, I recommend opening a command prompt
as Administrator. (Start : "cmd.exe" : right click and
Run As Administrator).

In there, enter this. This would be for Win8 or later systems.

powercfg -h off

That turns off hibernation.

That is to prevent the OSes from using kernel hibernation,
so when you select "reboot" from Windows 10, the BIOS will
allow you to select some other drive to boot from. Otherwise,
the hibernate bit is set, and a chance to select a boot drive
is disabled by the BIOS. You will stay "trapped in a loop"
booting Windows 10, until you can figure out how to
"do a complete shutdown". I just turn off hibernation,
so it will not be able to annoy me any more.

*******

In terms of side effects, of modern OSes being next to one another,
you may get spurious "CHKDSK" runs at startup. That's where the
file system doesn't seem to be shut down cleanly, from one OS
run, to the other one running. Since I only ran the Win 10 preview
for five minutes, there wasn't much time for testing old bugs. My
evidence here, seemed to suggest the Win7 Preview OS was spinning down
one of the disks, and the CHKDSK was related to doing an OS shutdown
when a disk was no longer spinning. But others here don[t feel that
is the root cause, and I still don[t really know what made it stop.
I messed around with Power Options a fair bit, so just about anything
might have fixed it. I was more interested in making the symptoms
go away, than anything else :-)

I fixed that very problem with....
http://www.pagestart.com/win8dbchkdsk121912.html



If you see other aberrations, Microsoft is pretty good about including
bad drivers with their install media. It's the fault of the hardware
manufacturer, for not making good drivers, and Microsoft's fault for
not testing the drivers properly. I've had three cases now, traceable
to bad drivers on the install media. This probably won't damage anything,
but could make the preview behave badly. I've had

1) Flashing screen due to video card restart.
Not fixable. No better driver available.
2) Sound output that would "thump" at startup.
Fixed by a driver update.
3) A video card bug where only half of the dual head stuff
was working. A driver update fixed that one. Hardware acceleration
on the second half of the video card is disabled, so that if you
play a game and alt-tab out of the game, the remaining half of
the card no longer is hardware accelerated. Screen redraws are
very slow.

Paul

On Thu, 09 Oct 2014 17:49:01 -0500, Rene Lamontagne wrote:

On 10/9/2014 4:01 PM, Gene E. Bloch wrote:
On Thu, 09 Oct 2014 15:34:16 -0500, Rene Lamontagne wrote:

all my life I have been curiouse
and want to know and learn about everything. so I am in the habit of
bending things till they nearly break

How do you know when to stop?

That's my problem in a nutshell, in trying to do what you suggest :-)

You gota stop when you say to yourself "just a little more" then say NO,
NO, NO! even so some things do break.

Regards, Rene

I guess this reply qualifies as "just a little more" :-)

Regards to you too,
Gene

--
Gene E. Bloch (Stumbling Bloch)

Rene Lamontagne wrote:
On 10/9/2014 4:01 PM, Gene E. Bloch wrote:
On Thu, 09 Oct 2014 15:34:16 -0500, Rene Lamontagne wrote:

all my life I have been curiouse
and want to know and learn about everything. so I am in the habit of
bending things till they nearly break

How do you know when to stop?

That's my problem in a nutshell, in trying to do what you suggest :-)

You gota stop when you say to yourself "just a little more" then say NO,
NO, NO! even so some things do break.

Regards, Rene

Once had a girlfriend that said that. Ending the relationship was a lot
easier than saying 'No'. If I didn't do that, something would have
eventually broke or stopped functioning.

--
....winston
msft mvp consumer apps