We Couldn’t Create A New Partition

We Couldn't Create A New Partition

The installation process of a new operating system like Windows 10 is typically seamless. However, some users encounter specific errors that stop them in their tracks – one such issue is the “We couldn’t create a new partition” error.

This article provides a comprehensive guide to identify and resolve this issue, ensuring a smooth Windows 10 installation process.

We Couldn't Create A New Partition

Understanding the Error

The “We couldn’t create a new partition” error often appears when installing Windows on a PC with multiple hard drives or a hard drive with existing partitions. While it may seem daunting at first, it’s certainly fixable with the right approach.

Solution 1: Disconnect Additional Hard Drives

Step 1: Shut down your PC.

Step 2: Disconnect all hard drives except the one you want to install Windows 10 on.

Step 3: Restart your PC and initiate the Windows 10 installation process again.

Solution 2: Delete Existing Partitions

Before proceeding, ensure you back up any important data, as this method involves deleting partitions.

Step 1: Start the Windows 10 installation process.

Step 2: When you reach the “Where do you want to install Windows?” screen, select each partition and click “Delete.”

Step 3: Once you’ve deleted all partitions, you should see “Unallocated Space.”

Step 4: Select the “Unallocated Space” and click “New” to create a new partition where you can install Windows 10.

Solution 3: Use Diskpart

Diskpart is a command-line disk partitioning utility included in Windows. Here’s how to use it:

Step 1: When you reach the “Where do you want to install Windows?” screen, press Shift+F10 to open a command prompt.

Step 2: Type “diskpart” and press Enter.

Step 3: Type “list disk” and press Enter to display all disks connected to your PC.

Step 4: Identify the disk you want to install Windows 10 on (usually Disk 0), type “select disk X” (replacing X with the number of your disk), and press Enter.

Step 5: Type “clean” and press Enter to remove all data from the selected disk.

Step 6: Type “convert gpt” and press Enter to convert the disk to GPT format.

Step 7: Close the command prompt and restart the installation process.


The “We couldn’t create a new partition” error can be a minor hiccup when installing Windows 10, but with these detailed solutions, you can quickly move past this issue.

Remember to backup any important data before attempting these solutions, as some steps involve erasing data on your hard drive.

Frequently Asked Questions 

Here are some of the frequently asked questions to this topic:

What causes the “We couldn’t create a new partition” error?

This error usually occurs when there are multiple hard drives connected to your PC or when the drive you’re trying to install Windows on has existing partitions.

Is it safe to delete partitions during the installation process?

Yes, but ensure you back up important data first as deleting partitions will erase all data stored on them.

What is Diskpart and is it safe to use?

Diskpart is a command-line utility included in Windows that’s used for disk partitioning. It’s safe to use but should be used with caution as it can erase data.

Can I reconnect my additional hard drives after the installation?

Yes, once the installation is complete, you can reconnect your other hard drives without causing any issues.

How can I avoid this error in future installations?

To avoid this error in future installations, ensure that you only have one hard drive connected during the installation process and that the drive is properly formatted.


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