It looks like Windows 7 only allows for 26 network drives (A:\ to Z:\, roughly).
Is there any way to get more?
DFS Namespaces is probably what you'll want to look it. It will allow you to aggregate drive shares into a single namespace.
https://docs.microsoft.com/en-us/windows-server/storage/dfs-namespaces/dfs-overview
Just mount the remove shares as subdirectories, instead of top-level drive letters. There's no limit on subdirectories.
Say my local network has over 26 computers, I copy files around between them. I don't want to RDP into each computer - using network drives is a little easier. Is there an even easier solution than setting up 26+ mapped network drives?- Yes, set up a central file server. – joeqwerty Dec 10 '18 at 20:11