Access to Windows 10 DVR Drive

I had an older Windows 10 PC which I set up as the DVR server. Works great.

The computer is set to automatically restart and log in if I lose power for any reason.

What I would like to do is network access the hard drive on that computer to use for external storage. When I try to access it from my main computer it says I don't have access and I can't seem to figure out how to do it.

I realize this is not exactly a channels issue, but wondering if someone can tell me how to set things up.

EDIT: Never mind, finally got it. Not sure what I did, but got it working. Thanks anyway.