If you receive this error message: “Setup was unable to create a new system partition or locate an existing system partition” while installing Windows 7, 8, 8.1, or 10, then don’t miss the following article.
Today’s article will give you step-by-step instructions on how to fix this problem and start installing Windows 7, but the process on Windows 10/8/8.1 will be similar. Follow the steps provided below to fix this problem.
How to fix the “Setup was unable to create a new system partition or locate an existing system partition” error when installing Windows

1. First, make sure that any external hard drives are unplugged from the computer. If you are installing Windows via a bootable CD or USB, leave them as is.
2. Now, press Shift
+F10
to open Command Prompt.
3. In Command Prompt window, type “diskpart” and press Enter
.

4. Then type “list disk“. This step will list all the hard drives connected to this PC. For example, there is only one drive (and you should also have only one drive). We will install Windows on this hard drive.
5. We need to select the hard drive by typing “select disk 0“. You can choose a different partition if you want.
6. Now, type “clean” to wipe all data on the drive.
7. Once done, type “create partition primary size-10000”.
8. Now, type “format fs=ntfs quick“.
9. Once done, type “assign” and then press Enter
.
10. Then type “active” and press Enter
.
11. Now, type “list volume” to list the partition or drive. It will show the partition you just created.
12. Now, we will copy the contents of the Windows boot CD drive to drive C.
13.Type Exit and then press Enter
.
14. Go to the CD drive by typing “cd e:” and pressing Enter
.
15. Now type “xcopy e:c:/e/h/k“, then press Enter
. It starts copying the installation files from the CD drive to the C drive. It will take some time to copy.
16. Once done, type “exit” and press Enter
. Close all open windows and restart the computer once more. After rebooting, the machine will start installing Windows.
17. Now you have the option to create a partition for the allocated space.
Once Windows is installed, you need to edit the boot loader. To remove this black screen from the boot process, follow the steps below:
1. Run Command Prompt with administrative privileges to accomplish this.
2. Type the command bcdedit and then press Enter
.
3. Locate the content “Description” and “Identifier”.
4. Type “bcdedit /delete (74253dcc9-effasdrc50-3582tvple-5263tlpt-5223thpf)”, and then press Enter
.
5. Restart the computer. This time, you won’t get a black screen anymore.