Hi Debbie,
If you are trying to restore an image, I doubt that it would work. Because in the Windows Recovery Environment, there is no guarantee that the Internet is connected.
A typical network share looks like this:
\PC-NAME<SHARED DRIVE>
The prerequisite of this exercise is that the Internet, as I said, should work, and also, in the folder where the image is present, the network sharing should be enabled.
I hope this information helps. If you have any more questions, don't hesitate to reach out.
Otherwise, please take a moment to rate the answer. Wishing you good luck!