How to communicate between two computers on the same network?

I have a Windows 11 laptop and a Windows 10 mini HP computer. While I can see the HP mini computer in my Windows 11 file explorer and can access the C: drive. However I have several backup drives connected to the Windows 10 mini PC and I can't access two of them for some reason the computer keeps telling me that I don't have permissions to access these backup drives which are connected to the mini HP computer via USB data ports. I am using my Windows 11 laptop (both computers are HPs) as the command console for my whole network because it has WiFi capability and the mini HP does not it is conn

Question by Troy Connor Sr. on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.