The error happens while installing Windows 7, Windows 8.1, or Windows 10 - "Setup was unable to create a new system partition or locate an existing system partition". The reasons come from many aspects, but it's not our main topic(We need methods instead of too much explanation.) In short, it happens because your Windows fails to identify which device to install Windows operating system.
And this undesirable warning often goes with a USB flash drive. The following method lets Windows identify the correct location for installing the operating system. The article puts effective ways in the front position. Select the method your can try.
Leave this USB plugged in.
1. Press "Shift + F10" to open the Command Prompt window.
2. Type "diskpart" and press Enter. (Remove quotes.)
3. Type "list disk" and hit Enter. (Then you will see all hard drives listed. If you have more than one drive, remember to pick the correct disk in the next step.)
4. Type "select disk X" and press Enter. (X presents the partition you want to install OS.)
5. Type "clean" and hit Enter.
6. Enter "create partition primary size=5000" and press Enter key.
7. Continue to type: format fs=ntfs quick and press Enter.
8. When formatting completes, type the following command lines and press Enter for each command.
- list volume
9. Then, change the directory location where your Windows installation file is located. Please enter the command to copy the installation files from the CD to the C drive:
- cd e: (cd equals to change directory. e means the location where your installation files are. You can change it with an actual letter.)
- xcopy e: c:/e/h/k
- Hit Enter.
Please type exit to quit the command prompt window and eject your USB if it is done. Then turn off the "Install Windows" window.
10. Reboot the computer, and the installation process starts.
- Follow the installation process:
- Click "Next" and then click "Install Now".
- Check "I accept the license terms" and click "Next".
- Select "Custom" and then choose the installation location. Click "Next".
- Final step - Click "Restart now".
Video Guide - How to Fix Installation Error with CMD
- 0:42 Use CMD to solve "Setup was unable to create a new system partition or locate an existing system partition".
If method 1 is beyond your desire, wait and try to change SATA controller mode (SATA Controller mode serves as a bridge to connect a hard drive and motherboard. It also manages other data.)to IDE mode.
Step 1. Reboot your computer and press the F2 key to enter bios. (See BIOS key: Dell BIOS Key Windows 10.
Step 2. Follow to "Advanced" > Choose "Storage Configuration" > Click "Configure SATA as" and press Enter > Choose "IDE" under "Options" and hit Enter.
Step 3. Press F10 to save changes and exit from BIOS.
Changing your mind and turning to another method - an error happens when using the USB. Skip this bothering issue and move your Windows system to another drive. To install Windows OS to another drive easily, you can use a professional OS migration tool - EaseUS Partition Master. It works to migrate OS to SSD.
Steps to migrate OS to HDD/SSD:
- Run EaseUS Partition Master, and select "Clone" from the left menu.
- Check "Migrate OS" and click "Next".
- Select the SSD or HDD as the destination disk and click "Next".
- Check Warning: the data and partitions on the target disk will be deleted. Make sure that you've backed up important data in advance. If not, do it now.
- Then click "Yes".
- Preview the layout of your target disk. Then click "Start" to start migrating your OS to a new disk.
- After this, click "Reboot Now" or "Done" to determine if you want to reboot the computer from the new disk immediately.
"Reboot Now" means to keep the changes instantly, while "Done" means you need to restart the computer later manually.
Note: The operation of migrating OS to SSD or HDD will delete and remove existing partitions and data on your target disk when there is not enough unallocated space on the target disk. If you saved important data there, back up them to an external hard drive in advance.
The last method is to eject and reconnect the USB. If you are getting the "setup was unable to create a new system partition" error when installing Windows 7 from USB, you can try ejecting and reconnecting the USB. Sometimes the setup program can have trouble accessing the files on the USB if it is inserted into a port that needs to be fixed. Ejecting and reconnecting the USB may help to fix this problem.
1. How do you fix error "we couldn't create a new partition or locate an existing one"?
This error typically occurs when installing Windows on a computer with an existing operating system. Some factors can cause the problem, but the most common cause is that the computer's BIOS is not configured to boot from the correct drive. To fix this error, you must change the boot order in the BIOS so that the right drive is listed first.
2. How do I create a partition in Windows 7?
Windows 7 includes a built-in utility for creating and managing disk partitions.
- To create a new partition, open the Disk Management tool by hitting Start and typing in "diskmgmt.msc."
- Once the tool opens, right-click on the unallocated space on your hard drive and select "New Simple Volume." This will launch the New Simple Volume Wizard, which will walk you through creating your new partition. You'll be able to specify the size of the partition, as well as the drive letter and file system.
Once you've created your new partition, it will appear in Windows Explorer, just like any other drive on your computer.
3. How do I fix Windows Cannot be installed in this partition?
The most straightforward solution is to delete the partition in question and then recreate it.
You need to boot from your Windows installation media and select the "Delete Partition" option from the menu. Once the partition has been deleted, you should be able to proceed with the Windows installation without any other errors. If you continue to experience this error, read on:
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About the Author
Daisy is the Senior editor of the writing team for EaseUS. She has been working in EaseUS for over ten years, starting from a technical writer to a team leader of the content group. As a professional author for over 10 years, she writes a lot to help people overcome their tech troubles.
Tracy became a member of the EaseUS content team in 2013. Being a technical writer for over 10 years, she is enthusiastic about sharing tips to assist readers in resolving complex issues in disk management, file transfer, PC & Mac performance optimization, etc., like an expert.
I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes. I also think the overall look and feel of EaseUS Partition Master Free makes whatever you're doing with your computer's partitions easy. Read More
Partition Master Free can Resize, Move, Merge, Migrate, and Copy disks or partitions; convert to local, change label, defragment, check and explore partition; and much more. A premium upgrade adds free tech support and the ability to resize dynamic volumes. Read More
It won't hot image your drives or align them, but since it's coupled with a partition manager, it allows you do perform many tasks at once, instead of just cloning drives. You can move partitions around, resize them, defragment, and more, along with the other tools you'd expect from a cloning tool. Read More