Interesting..... so I will probably stick with Win7
http://windowssecrets.com...-in-windows-licensing/

Can Win10 run in a VPC or dual-boot setup?

Many cautious Windows upgraders wish to leave Win7/8 on their PCs and install Win10 on a second drive or partition. Typically, they want to copy or create an image of a Win7 setup, upgrade to Win10, and then restore the original OS on another drive/partition. Sorry, but that’s not allowed. As long as Win10 is installed, takes over the original Win7 or Win8 license. For a month after installation, Win10 lets you roll back to Win7 or Win8 — but that process removes the new OS.

cityrat
 
Interesting..... so I will probably stick with Win7
http://windowssecrets.com...-in-windows-licensing/

Can Win10 run in a VPC or dual-boot setup?

Many cautious Windows upgraders wish to leave Win7/8 on their PCs and install Win10 on a second drive or partition. Typically, they want to copy or create an image of a Win7 setup, upgrade to Win10, and then restore the original OS on another drive/partition. Sorry, but that’s not allowed. As long as Win10 is installed, takes over the original Win7 or Win8 license. For a month after installation, Win10 lets you roll back to Win7 or Win8 — but that process removes the new OS.

Have you tried it?

Works for me. Do dual boot windows 7. Upgrade them both to Win10. Both get seperate product keys afterwards and are activated. If that does not work you still have your acronis backups one hopes. Btw I have two PCs with multiboot Linux,windows 8.1 and 2xwindows 10.

For months now... And I'm sure it's not going to change.

It's important to realise you get a seperate product key after you update win7. So you must do upgrades (at least initially) to generate product keys.

Btw apparently you can't update windows enterprise installations to win10 as well. This is BS... You have downgrade rights to windows professional. You can do this by doing a couple reg tweaks and then repair windows. From this position you can then update to win10.