Can I access another PC through a TP-Link on my home network

I have extended my home WiFi network (BT Smart Hub 2) to another building via a radio link (Ubiquiti NS-5ACL NanoStation). In that building I have a TP-Link router (Archer C50) to which I have attached a Laptop (via wifi).

Is there any way I can access the C:/ drive of that laptop from my PC in my home network?

I’ve Googled it and just cannot find a way how to do this – if indeed it’s possible.

I’m not very techy but would very much appreciate any assistance if anyone knows if this is possible.

Many thanks.