We were unable to update the system partition
Press the Windows key + R.
Select the partition marked as system spare.
Select “Change Drive Letter and Paths”.
Select Add.
Enter Y as the drive letter.
Touch or click OK.
Find cmd in the start menu.
At the command prompt, type Y: and press Enter to switch to this drive.
According to users, issues with the “Could not create new partition” error message can be caused by the Media Creation Tool. Users reported that using a third party tool like Rufus instead of the Creation Media Tool to create a bootable USB fixed the issue.