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#51
Is there a partition for W10? I don't think so. Just unallocated space. My typo may have mislead you and other posters though!
That text should be:
W7 is on 'Disk 2'. I accidentally wrote 'Disk 1'. The picture is right, of course.Disk 1 is the new SSD. Disk 2 has a 100GB NTFS partition with W7 (C:OS). Disks 3/4 are USB sticks. Same for Disk 5. It's a 128GB USB stick where I burned the W10 iso using Rufus. I see now it says "Bad Disk" for some reason! I can see the USB stick just fine. 'Properties' of the USB stick says 5.13GB used...
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Yes, that's what I'll do tomorrow. You're not missing anything!
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I didn't think of doing that by it sounds pretty good.
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I think it's on the system level, not device level, but I'm far away from someone that can make such a declaration!
You can dual boot multiple OS across multiple physical drives. The computer boots from the selected drive and the BCD on that drive contains entries for the other OS on the other drives. You get your standard multi-boot menu that, for example, might show Windows 10 Home, Windows 10 Pro, Windows 7. Windows 10 Home can be on disk 1, Windows 10 Pro on disk 2, Windows 7 on disk 3. You create the BCD entries for the other OS using the bcdboot command.
In @dst11's situation, he boots the computer from the Windows 10 USB flash drives. Select the custom install option. Click on the unallocated space on Disk 1 and then next. No partitions are required to be created beforehand. If his BIOS/UEFI settings are correct and/or the Windows 7 drive is disconnected, Windows 10 will set up the SSD (Disk 1) with all the standard partitions including a system partition, a boot partition for the OS, and possibly a recovery partition.
After the installation, either the SSD or the Windows 7 physical disk can be selected to boot from. @dst11 would boot from the SSD into Windows 10, and then use the bcdboot command to add Windows 7 to the BCD in the system partition on the SSD the computer boot from.
Also, the Windows 10 partition on the SSD could be shrunk to allow a space for a Windows 7 partition, if desired. The Windows 7 partition could be copied from the hard drive to the SSD, and again bcdboot command could be used to create a BCD entry for Windows 7.
It is really very simple. I'm afraid my previous example of shrinking partitions and dual booting from the same drive muddled things up. It was meant as only one example. It is very easy to set up multi-OS booting across multiple physical drives from the boot menu on one selected system disk.
Hello Matthew,
Dual booting is when you have a choice to select which OS to run at startup when you have two OS's installed. It doesn't matter of the two OS's are installed on different partitions on the same disk or on separate disks, but it would be best to have them on separate disks.
SUCCESS! And it was pretty pretty fast. Something around 30 minutes. It was as @NavyLCDR said: Boot from the USB stick, select Custom, highlight the SSD unallocated space, and ...Windows 10. Windows 7 is safe and sound. If anyone is curious here's a new screenshot from MiniTool's Partition Wizard: https://i.imgur.com/UI0fhhx.jpg . Many thanks to everyone here for all their help.
One thing. Even though I didn't disconnect W7 at any point, there is no OS menu at bootup. I must be quick to hit F12 and get the boot menu. If I select the old HDD it boots into W7. If I select the new SSD it boots into W10. I found this tutorial: Boot to Advanced Startup Options in Windows 10 . I'll do it later.