How to switch from basic session mode to enhanced session mode on a Hyper-V virtual machine?

I'm working with some virtual machines, using Hyper-V technology. Apparently, the speed with which files are copied back and forth might depend on the kind of session mode (basic or enhanced). When I log onto my virtual machine, I get the opportunity to enter username and password and I'm logged in a basic session mode. When I click on the keyboard button in order to go to enhanced session mode,…

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