We Couldn't Create a New Partition or Locate an Existing One in Windows 11, How to Fix?

Windows installer will create 3 volumes from unallocated space but errors on installation. Each of them is only a few 100 MB at max and the main data volume which takes up the rest of the space. When I try to install Windows onto the largest volume on the drive, I get an error: We couldn't create a new partition or locate an existing one. How to fix it?

Best Answered by

Roxanne· Answered on Apr 18, 2024

In Windows 11, one of the most common setup errors is "We Couldn't Create a New Partition or Locate an Existing One." It may be caused by interference from the connected peripherals. So the first action you should take is disconnecting all external storage devices. If this does not work, you can try the following methods to resolve the problem. Here is a list of the methods:

  • Run EaseUS Partition Master
  • Set the Drive as the First Boot Device
  • Active your partition Using Diskpart
  • Format the Drive with Diskpart
  • Covert the target drive to GPT

Continue to follow the specific tutorials in the following part:

Fix 1. Run EaseUS Partition Master

To fix this problem quickly, you can turn to a third-party tool - EaseUS Partition Master, which can mark your partition as active. Moreover, this tool is easy to operate and experienced in partition problem-solving.

Free Download 

Windows 11/10/8/7100% Secure

Learn how to set your partition active using EaseUS Partition Master as follows:

Step 1. Run EaseUS partition manager software. Right-click the target partition and select "Advanced."

Step 2. Click the drop-down menu and choose "Set Active." Click "Yes" > "Execute 1 Task(s)" > "Apply" to finish.

Fix 2. Set the Drive as the First Boot Device

The second way is to set the target drive as a boot device in BIOS settings. Below is a step-by-step guide:

Step 1. Reboot your computer and press F12, F10, F1, F2, or CTRL + ALT + ESC to enter BIOS settings during booting.

Step 2. Under the boot device menu, move the target drive to the top.

Step 3. Restart the PC to see if the problem is solved.

Fix 3. Active your partition Using Diskpart

Apart from the above methods, you can run command lines in Diskpart to set the target drive as active:

Step 1. Close the setup and choose the "Repair" button after you get the "We couldn't create a new partition" error message. 

Step 2. Open "Advanced Tools" and then click on Command Prompt to enter the following CMD:

  • list disk
  • select disk X(Replace X with the target drive number)
  • list partition
  • select partition X
  • active

Step 3. Type exit and hit "Enter" to quit.

Refer to the related article below to find details of fix 4 and 5:

More Information: Fix "We Couldn't Create a New Partition or Locate an Existing One"

People Also Ask

Should I Partition My SSD for Windows 11

When upgrading your disk from HDD to SSD, you may find there's only one partition on the disk. Then, here goes the question, 'Should I partition my SSD for Windows 11?' To find out the answer, read this page with informative content.


Jan 26, 2024

Can I Merge Two Partitions Separated by a Recovery Partition?

Are you looking for an effective way to merge two partitions separated by a recovery partition? Then, you don't want to miss this helpful guideline that provides a practical way to merge two non-adjacent partitions.


Apr 18, 2024

What Command Can Be Used to Totally Wipe a Hard Drive, Including the Partitioning System?

Have you wondered what command can be used to totally wipe a hard drive, including the partitioning system? This page will tell you the answer and teach you how to do it in detail.


Apr 19, 2024

Can You Format a Locked Encrypted BitLocker Drive?

Can you format a locked encrypted BitLocker drive without the password? The answer is yes, but how? Continue reading this post, and you will find the answer.


Apr 19, 2024

Does Anyone Know of A Good Way to Clone A Hard Drive for Free?

How do I make a full copy of my hard drive without losing data? Does anyone know of a good way to clone a hard drive for free? Here, you will find the answer.


Apr 19, 2024

Missing Unallocated Space After the Volume Shrink, How to Resolve?

Are you finding a practical solution for missing unallocated space after the volume shrink issue? This page can provide reliable methods to help you fix this problem.


Apr 18, 2024