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Dual Boot woes

M

Master_Blaster

n00b
Joined
Dec 31, 2016
Messages
6
Hi all,

So I am still running and like Windows 7. I finally decided to give Windows 10 a shot as I want to play some DX12 games that take advantage of my video card. I did something wrong as now I can't seem to get a dual boot setup going.

What I want:
Windows 7 system as default. Windows 10 as optional.

What I need:
Some way to have a choice at boot to select the operating system.

What I did:
I bought bought a new 250gb SSD, plugged it into a Sata port and started Windows 7. In Win7 I started Disk Management and formatted the new SSD, giving it a volume label (Windows 10). Win 7 gave it a drive letter of F.

I rebooted into my motherboard's BIOS and set the boot drive as my DVD drive. The DVD drive with Win 10 disk in it started up and I selected the empty SSD for the Windows 10 install. All went well but I can't get Windows 10 to see the Drive with Windows 7 as a boot option using Windows 10's advanced startup options. It does not give me the option of use another operating system (doesn't see windows 7 as a valid option?) but the drive is visible in explorer.

If I go into my motherboard Bios and select the boot drive as the SSD with the Windows 7 install, Windows 7 starts up, again no option to select 10 (but again, the drive is visible in expolorer.

As an aside, now chkdsk wants to check my drives every time I boot (PITA).

I clearly didn't install Windows 10 in the right way, or did I but I am missing something.

help?

(and many thanks ahead of time)

MB
 
Using the motherboard option is a pain. I have an ASUS Maximus Hero VII. It lets me select only 1 hard drive at a time.

Also, when I boot into Windows 10 it is the C drive and Windows 7 another letter. Is Windows 10 writing something to my Windows 7 drive and maybe that is what is calling up chkdsk?
 
I've always used the quick boot menu from my motherboards and every OS is installed on its own physical drive. Multiboot from one drive is more dangerous and prone to errors.
In Asus mobos it has always been F8 for me. It gives me my drives to select to boot from one.
The trick when installing a new OS this way is to ALWAYS disconnect the other drives from the computer, physically. So Windows installation couldn't mess with the other drives, especially installing/using other drive as a boot selector.
Also I always disable (at least remove drive letter) other OS'es system partitions so the current OS wouldn't mess with it in any way. I also put other drives Offline from disk management unless I need some data-partition for some data.
Master_Blaster, this is normal - when booting another OS, it gives its own partition C:, and others are reordered based on sata ports connections or something like that.
 
Good advice but I was hoping to share a Steam installation so I need Windows 10 to see that drive (have all the games (Steam , GOG etc) on a separate drive. Is this doomed to failure?
 
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