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Solved: Dual Boot Windows 10 with Windows 7/8

Updated on Dec 06, 2018 by Tracy King to Partition Manager

Don't want to lose Windows 7 or 8 and you still want to install latest Windows 10 in your PC? This tutorial article will guide you to create a dual-boot system to keep both Windows 10 and Windows 7 or 8 in your PC. Feel free to follow and dual boot Windows 10 with Windows 7 or 8 on without losing any files now.

Microsoft is pushing all Windows users to free update to new Windows 10 system, and it's telling all worldwide users that if you refuse to do so, they'll have to pay a bunch of extra money for new Windows 10. 

What about to keep both Windows 7 or Windows 8 with new Windows 10? How is that possible? Actually, you can create a dual boot system with both Windows 10 and Windows 7/8. Let's see how to dual boot Windows 7/8 with Windows 10 now. If you are not quite familiar with the process of how to create dual boot system for Windows 10 and Windows 7 or 8, just follow below 4 steps to start now:

Note: In order to avoid data loss trouble while creating a dual boot system for Windows 10 and Windows 7 or 8, it's highly recommended for you to back up important data first.

1. Back up important data first

To create a dual-boot system, you may need to create an entire new partition for installing new Windows 10 system in it. Therefore, to avoid data loss problem, it's highly recommended for you to create data backups first.

You can either choose to backup data by copying files one by one or try some data backup software to directly backup all wanted data into external hard drive or storage devices.

2. Resize partition to make space for Windows 10 installation on Windows 7 or 8

  1. If you have a free partition or enough space for installing the new system, you can jump to Step 3.
  2. If not, please follow below tutorial steps to crease or resize Windows 8 or 8 partitions to make space for installing Windows 10.

Here we'll offer you two methods to resize partitions in Windows 7/8 to create new partitions for Windows 10 installing:

Method 1. Use the partition manager to make space for Windows 10

If you have multiple partitions in your computer, you may choose to empty one or two and format it for free up space. 
If you don't want to free up space by formatting, you may need to shrink the partition to leave unallocated space.

Professional partition manager software - EaseUS Partition Master will support you to effortlessly make space for you in Windows 10/8/7 with easy steps.

Download Now

 Windows 10 is supported


Step 1: Install and launch EaseUS Partition Master

On the main window, right-click on the partition that you want to shrink and select "Resize/Move".

Run EaseUS Partition Master

Step 2: Adjust partition size

To shrink a partition, use your mouse to drag one of its ends to shrink partition space.

Adjust partition size

You can also adjust the partition size box to shrink the target partition.
Click "OK" to continue.

Confirm to decrease partition

Step 3: Shrink partition

Click the "Execute Operation" button and "Apply" to keep all changes.

Keep changes

Method 2. Use the disk management tool to make space

Step 1. Right-click Computer/This PC and choose Manage;
Step 2. Tap Disk Management, right-click the partition that you want to shrink and select Shrink Volume...

Shrink partition for Windows 10 dual boot with Windows 7/8.

Step 3. Enter the amount of space that you want to shrink to create a new partition and click Shrink.

3. Download and install Windows 10

After creating Windows 10, you can now download Windows 10 into a USB drive or DVD and perform a clean install of it.

Step 1. Download Windows 10 ISO file into a DVD or USB drive;
You may need to create a bootable USB drive.

Step 2. Connect the DVD or USB drive with the PC and reboot computer.
The computer will automatically boot into the Windows 10 installer, if now, you may need to change the boot order in the BIOS.

Step 3. Then go through the Windows 10 installation process manually, select language, keyboard and finally click Install now. 

Install Windows 10 on Windows 7/8.

Step 4. Click Custom: Install Windows only (advanced) installation option after agreeing to the license agreement, which will let you install Windows 10 alongside an existing Windows system (7/8).
Step 5. When "Where do you want to install Windows?" appears, select the unallocated partition that you created earlier and select it to create a new partition by Apply to full use the space by default for Windows 10 installation.

Create new partition to install Windows 10.

Step 6. Click Next to install Windows 10 on the new partition and let it finish the installing process automatically.

4. Dual boot Windows 10 with Windows 7 or 8

Now you can choose between Windows 10 and Windows 7/8 when you boot your computer.

Step 1. Restart the computer and select your desired version of Windows in the boot menu;

Dual boot Windows 10 with Windows 7/8.

Step 2. Click: Change defaults or choose other options to choose the Windows operating system you want to boot by default or control how long the OS selection will appear before it automatically boots the default system.