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Fix: Setup was unable to create a new system partition

2016-01-07 15:32:08 Posted by Abby Haines to Partition Manager

Summary:
Here you can learn how to fix Setup was unable to create a new system partition error in two ways. Just try the one you like to solve the problem and achieve a successful Windows installation with ease.

Have you ever encountered "Setup was unable to create a new system partition" error?

I'm trying to install Windows 7, however at the partition selection screen I get an error message: "Setup was unable to create a new system partition or locate an existing system partition. See the Setup log files for more information." I have no idea why this is happening. Searching this on the internet, I found there were multiple people that had success with using the disk part utility. I tried it but was still getting the same errors. How can I solve "Setup was unable to create a new system partition" problem to achieve a successful Windows installation?

"Setup was unable to create a new system partition" error usually happens when attempting to install Windows Vista, Windows 7, Windows 8, and Windows 10 from a USB drive, external drive, thumb drive, USB stick, etc instead of using a CD or DVD. If you encountered such a situation unfortunately, please don’t worry! Here we will introduce you two efficient solutions to fix "Setup was unable to create a new system partition" error with no efforts.

Method 1. Eject and re-insert the USB

Eject and re-insert the USB is the easiest solution that I would like to recommend when you want to fix "Setup was unable to create a new system partition" error. Here is how to do it:
Remove all partitions on the drive (no need to launch diskpart, you can just use the partition selection screen)

1. Unplug the USB drive.

2. Click Next. You will get: Windows is unable to install to the selected location. Error: 0x80300001.

3. Replug the USB drive.

4. Click Refresh.

5. Click Next.

Method 2. Manually create the boot partition

The first method might only work well to solve "Setup was unable to create a new system partition" problem in Windows 7 but don’t help with Windows 8, Windows 8.1 and Windows 10. So I would like to introduce another solution that will be suitable for any Windows version.

Basically, you just need to copy all installation files from USB flash drive to your HDD (or SDD) drive and make it bootable, then continue installation from HDD to HDD.

  1. 1. Boot Windows installation from USB flash drive.
  2. 2. Press Shift+F10.
  3. 3. In console type diskpart.exe and press enter. In this program execute following:
    • select disk=0. Disk 0 is your destination drive, so be careful, all information on this drive will be removed.
    • create partition primary size=xxx, where xxx – is the size of new partition.
    • select partition=1.
    • active.
    • format fs=ntfs quick.
    • assign.
    • exit, now you have bootable drive C.
  4. 4. Navigate to USB flash drive, in my case: cd d:.
  5. 5. Copy all files from USB drive to C: drive: xcopy d: c: /e /h /k.
  6. 6. Go to boot folder: cd boot.
  7. 7. Make you C: drive bootable with following command: bootsect /nt60 c:.
  8. 8. Put off USB flash drive from computer and restart them.
  9. 9. Install Windows.
  10. 10.Remove unnecessary menu item from bootscreen.
    • Run cmd.exe as Administrator
    • See boot menu list bcdedit
    • Find Windows Setup and copy identifier
    • Run bcdedit /delete {identifier}

I really hope there is, at least, one way that can help you fix "Setup was unable to create a new system partition" error and achieve a successful Windows installation. And if you are facing any other disk-related job, you can try EaseUS partition software to do you a favor. The program is a professional and affordable disk Management tool for Laptop, PC, and Workstation with one scalable solution of disk management, partition recovery and clone. It is widely used for extending system partition, settling low disk space problem, managing space easily on MBR & GPT disk.