What is Dual boot – A computer with two operating systems. At startup, a boot manager program lets the user choose which one to load. “Multiboot” may refer to a dual boot system or to hosting more than two operating systems. Dual booting is more convenient, since you don’t have to delete Windows 10, while still maintaining a legacy version of Windows for compatibility purposes. This is guide is about How to install dual operating systems or setup dual boot.
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Before we begin, I strongly recommend you backup your new computer with Windows 10 before carrying out these procedures.
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How to install dual operating systems or setup dual boot
Here are the basic steps before we get to the details:
- Install a new hard drive, or create a new partition on the existing one using the Windows Disk Management Utility
- Plug in the USB stick Windows 7 or other operating system bootable , then reboot the PC.
- Install Windows on newly created partition or drive.
- Select the newly created partition or the other hard disk as the destination for Windows 10. Then click Next to install the operating system. Learn how to perform install installation.
Important Drivers you should download and save in advance
When you perform a new install or upgrade, you should download the latest software drivers from the manufacturers website for your computer model. Important drivers include: Chipset, Video, Audio and Network (Ethernet/Wireless). For laptops, make sure you download the latest Touch Pad drivers. There are other drivers you will probably need, but you can often download these through Windows Update after have a working Internet connection setup.
Find and download drivers from the manufacturers website:
Prepare the install media
Depending on the type of computer you have, an optical drive might not be available, which means, you will need to prepare a bootable copy using a USB thumb drive. This is ideal for newer 64 bit computers that come preinstalled with Windows 10. Rufus is the best solution to use: How to create install media for clean installation Create USB install media from Windows ISO.
If your computer is UEFI based, these are normally systems that come pre-loaded with Windows 8 or later, you will need to prepare the ISO file for such a configuration or you will receive an error message during setup. The thumbdrive needs to be formatted as FAT32 and use the GPT partitioning scheme. To do this, you need to use Rufus, a small tool you can download for free.
After you have installed Rufus:
- Launch it
- Select ISO Image
- Point to the Windows 10 ISO file
- Check off Create a bootable disk using
- Select GPT partitioning for EUFI firmware as the Partition scheme
- Choose FAT32 NOT NTFS as the File system
- Make sure your USB thumbdrive in the Device list box
- Click Start
- Close when complete
Prepare Partition where Windows 7 or Windows 8.1 will be installed
You will need to set aside some space where Windows 7 or Windows 8.1 will be installed. Considerations for the operating system, applications, software updates and personal files must be taken into account. If you plan to keep around the older version of Windows long term, then the bigger the better. I personally recommend a minimum 60 GBs.
Press Windows key + X then click Disk Management
Select the system partition where Windows 10 is currently installed. Right click it then click Shrink.
Enter the amount of space you would like to allocate to Windows 7 or Windows 8.1, then click Shrink. The more, the better.
An unallocated partition will now be available. Right click it then click New Simple Volume
This will start the New Simple Volume wizard, which will let you format, assign a drive letter and label the volume.
Once your partition is prepared, you are now ready to install Windows 7 or Windows 8.1. Insert or connect your install media. If setup does not start automatically, click Start > File Explorer > This PC. Double click the install media to begin setup.
Click Yes when prompted.
Click Install Now
Click Custom (advanced)
Select the partition we created earlier then click Next.
Wait while Windows install files are copied.
After restarting, Windows will boot into setup.
Windows setup will continue copying files then restart again.
A boot entry will be added for the older version of Windows. You will notice an entry is also available for Windows 10. This will allow you to easily choose, which version of Windows you would like start when you turn on your computer.
Complete Out of Box Experience
You will need to complete the Out of Box Experience which includes creating an account/password, machine name, join an available wireless network, adjust time zone.
After you have completed setup, proceed to install recommended drivers downloaded in advance:
Chipset, Video, Audio and Network (Ethernet/Wireless).
Also run Windows Update and also ensure you have an Antivirus utility installed and updated immediate.
That’s it, when you ready to boot into your OS a choice, you can easily do so.
This guide is about How to install dual operating systems or setup dual boot. Now you have Windows 8 and Windows 7 both operating systems install on your computer. You can also setup dual boot with Windows 10 and Windows 7 by following slimier steps as above.Post your questions in comments or in Forum