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Win10 previews large TIFF files much faster than El Cap GM, even on a slower drive. The Finder is still not at the level I would except in 2015. In terms of productivity there's no benefit of El Cap on a cMP until metal apps come out, if they ever live up to the promise. Photoshop's Mercury engine didn't exactly deliver what couldn't be done before it came out either.
 
There is a tool called rufus that will create a UEFI boot stick from the Windows 10 .iso you can download from MS. The crappy part of the free W10 upgrade is it's exactly that you can't do a fresh install using a W7 key you have to upgrade which will activate once the upgrade happens you can then fresh install.

All in all W10 is OK i'll probably keep it on my boxes through the end of the month then go back to Linux as Windows and OS X are just to byzantine to keep me happy in the long term.
 
Under El Capitan, WinClone can't currently restore a Windows image because of SIP. You have to go through the whole complicated process of disabling SIP if you need to restore an image. A better and quicker choice is to keep Yosemite on another drive for using WinClone, and also Disk Utility which has been turned into a toy under El Cap.
 
I rely on Paragon Hard Disk Manager 15 to clone (booyable too) Windows, ver. 3 added support for 10.
But then I wouldnt put 10 and OS X on same device. Paragon CampTuneX may have something to offer.
 
I rely on Paragon Hard Disk Manager 15 to clone (booyable too) Windows, ver. 3 added support for 10.
But then I wouldnt put 10 and OS X on same device. Paragon CampTuneX may have something to offer.

The issue with WinClone isn't cloning the Windows drive. It can't restore an image because SIP in El Capitan won't let it. I don't know if that is true for CampTune X but Windows 10 support is one thing and then it needs El Capitan support too.
 
The issue with WinClone isn't cloning the Windows drive. It can't restore an image because SIP in El Capitan won't let it. I don't know if that is true for CampTune X but Windows 10 support is one thing and then it needs El Capitan support too.
Can you boot into Recovery Mode ( I think that temporarily disables SIP ) and do your WinClone restore, then reboot back into normal mode with SIP reenabled? If that works, and taking normal backup snapshots while running in El Capitan works, I think that would be adequate for most users.

Note: I haven't actually tried this yet ... just reading up on issues regarding SIP and ways around them.
 
Can you boot into Recovery Mode ( I think that temporarily disables SIP ) and do your WinClone restore, then reboot back into normal mode with SIP reenabled?

Note: I haven't actually tried this yet ... just reading up on issues regarding SIP and ways around them.

The developers are currently recommending that as the solution . I think it's easier and quicker to just boot into Yosemite and use WinClone there.
 
OK, I read through most of this, but still have questions: I have a 2012 cMP 5,1 with an NVidia GT 650ti installed. SATAII HDs - bay 1 is my Yosemite volume, bay 2 is Win7Pro. I'd like to upgrade W7 to 10, but I'm nervous of the system going bananas. Is there a simple "upgrade" path, rather than clean installing? In addition, do I need to upgrade any bootcamp drivers, and is that done via the control panel in Windows? Thanks.
 
OK, I read through most of this, but still have questions: I have a 2012 cMP 5,1 with an NVidia GT 650ti installed. SATAII HDs - bay 1 is my Yosemite volume, bay 2 is Win7Pro. I'd like to upgrade W7 to 10, but I'm nervous of the system going bananas. Is there a simple "upgrade" path, rather than clean installing? In addition, do I need to upgrade any bootcamp drivers, and is that done via the control panel in Windows? Thanks.

Back up Win7 and associated apps and files. Then perform the upgrade and create a Microsoft account. Then activate if required. Microsoft will store your machine's configuration with the activation. Install Bootcamp drivers 5.1.5621

That's the upgrade process.

If you want to do a clean install, do the above and then go back to OSX. Start the Bootcamp Asssistant and do a clean install with the Win10 disc (you can download and burn the ISO). During set up choose to do a clean install. Sign in with the Microsoft account when prompted. Microsoft is automatically able to tell its the same machine therefore you won't need to go through activation again. Then install Bootcamp drivers 5.1.5621 again.
 
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I would probably add: to set your StartUpDisk to be the Windows 7 drive in Bay-2. Then unplug your OS X Bay-1 drive for the duration of the upgrade to Windows 10. Once all is stable on the Windows side, you can re-install your OS X disk and continue using your computer as usual.

Good luck ...
 
I would probably add: to set your StartUpDisk to be the Windows 7 drive in Bay-2. Then unplug your OS X Bay-1 drive for the duration of the upgrade to Windows 10. Once all is stable on the Windows side, you can re-install your OS X disk and continue using your computer as usual.

Good luck ...

Why is that? Does the Mac volume somehow annoy the Windoze installer?
 
Why is that? Does the Mac volume somehow annoy the Windoze installer?
Yeah ... after you go through the entire laborious process of downloading updates and installing the upgrade, your system will reboot one last time and you will see a lengthy login time followed by the cryptic error message:

"The installation failed in the SAFE_OS phase with an error during PREPARE_ROLLBACK operation."

You will then find yourself back in your original Windows 7 or 8 installation ... ready to try again.

Unplugging ALL unnecessary drives seems to avoid this error. You also need to have the target drive in one of the normal drive trays, not on a PCIe card which is considered "external" (you are already OK here with your drive in Bay-2).
 
Why dont you guys give rEFInd a try? Might save you a lot of hassles, especially if you dont want to hold down the Option key at startup!
Perfectly good EFI bootloader, after rEFIt was no longer maintained.
p.s - I have found that ditching the bootcamp assistant is the wisest choice you can make. Just load the osx drivers (bootcamp) after you have successfully installed Windows.
 
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Why dont you guys give rEFInd a try?

I've thought about exactly that. The reason why I don't is that it doesn't really fix the problem--it just makes the workaround a little bit better. When I have time, I'm backing everything up and starting over.
 
I was able to install BootCamp 6 after following the instructions in this thread:

https://forums.macrumors.com/thread...6-no-support-for-systems-before-2012.1907386/

Used Orca to delete the launch conditions in Bootcamp.msi. Installed. This fixed the Apple HFS driver issue with BootCamp 5 and Windows 10 where shadow volumes wouldn't work (thus preventing backups, system images and restore points from being created)

So now I've got EFI Windows 10 running on a 5,1 perfectly. Right now saving a system image backup of my C: drive to an external USB. :)

Love how this community overcomes the artificial barriers Apple keeps throwing our way.
 
Recommend everyone do a full System Image backup before installing the big update.

It's odd though, these days I expect less drama from Windows updates than OS X updates since Apple won't supply native OS X drivers for my video card.
 
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