Install two operating systems on one computer.
Install two operating systems on one computer.
I own two drives—one with a 64-bit Windows 10 and another with a 32-bit version. It boots fine on the 32-bit side too. I’ve used both Windows 7 drives for dual booting, but when I navigate to the control panel, system settings, and security menus during dual boot setup, it always displays Windows 10.
You must either choose the correct HDD in BIOS or create partitions with Windows 7 and 10 on separate drives. The BIOS has a boot priority setting. If you don’t set which drive to boot first, it checks the list from highest to lowest and starts from the top. If your Windows 10 drive is number one in priority, it will launch Windows 10 immediately. On the BIOS splash screen, you’ll find a Boot Menu or Boot select option. When installing multiple Windows versions on one HDD via partitions, the system will prompt you to select which operating system to boot at each startup.
I won 10 on a 64-bit drive and 10 on a 32-bit drive are stored together. I also have a win on another drive, just for clarity.
You're using Legacy BIOS. For Windows 10 32-bit and 64-bit, you'll need to adjust settings to make both appear. You'll also require two Windows 10 product keys if you want both activated. https://answers.microsoft.com/en-us/wind...3cede67975 Regarding Windows 7 and 10, are both HDDs recognized in the BIOS? Like the image you shared, it shows a Hiatchi HDD and a Seagate HDD. Upon startup, you'll see a splash screen with options like "BIOS Setup," "System Information," and "Boot Menu." Selecting the "Boot Menu" should display a list of boot sources.
Not found on any screen suggests the Windows 7 HDD isn't connected properly, the BIOS might have disabled it, or the port is turned off. Once it works, you can rearrange which drives appear during startup. Your main challenge could be using a non-UEFI motherboard, as Windows 7 and Windows 10 handle booting differently depending on the boot manager. It's challenging to get everything functional until a consistent boot manager is in use.