The system reset option is looking for a .wim file (probably install.wim?) in the preload folder of partition 7 on your hard drive. The problem is that you don't have 7 partitions on your hard drive, you only have 6. So, you have a couple options. The first question is what do you want to reset your computer to and why? Do you want a fresh install of Windows 10? The easy way to do that would be to download a Windows 10 ISO file, save it to a USB thumb drive (at least 4 GB, 8 GB is better, formatted as NTFS), then do the upgrade repair install.

Windows 10 ISO Download - Windows 10 Forums

Repair Install Windows 10 with an In-place Upgrade - Windows 10 Forums

If you want to reset your computer back to factory installed software - hopefully on of the partitions on your hard drive is the old partition 7. You will want to install MiniTool Partition Wizard free:
Best Free Partition Manager for Windows | MiniTool Partition Free

Right click on each of the partitions, especially the recovery partitions, and select browse. You are looking for the partition with the preload folder in it, that hopefully contains a .wim file. Then you will have to reset the partition that Windows RE is looking for the recovery image file in. In the command prompt (admin) window run:

REAGENTC.EXE /setosimage /path \\?\GLOBALROOT\device\harddisk0\partitionX /index 4

Replace the red X above with the partition number you find the preload folder in. Partitions start at the number 1. That should enable the reset command from work from the Windows Recovery Environment menu.

OH....there is also this from Microsoft:
Start fresh with a clean installation of Windows