Hello there,
This error message basically states that DISM was unable to find the files required to fix the online Windows image in their default location.
Try to get the Windows 2016 iso and then try to run a repair upgrade. Before the repair upgrade try the below steps and see if they are helpful.
Open the Start Menu, type cmd, right-click and Run as Administrator
In the command prompt, type the following commands in the same order:
dism.exe /online /Cleanup-Image /StartComponentCleanup
sfc /scannow
Wait for these commands to run, then type in the following command and hit Enter:
Dism /Online /Cleanup-Image /RestoreHealth
Check if Dism /Online /Cleanup-Image /RestoreHealth works
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