I hope my question is not too trite, I am asking here in case others benefit: I have been running Linux exclusively for over 10 years now, and I need to set up a Win10/11 environment for my sister. To that end, I installed Win10 offline in a VM with virt-manager, but I do not have an activation key. Or rather, I have several coming from old computers of mine, but I am not sure if they are valid; I don't use those computers any more.<p>So, here I am, with a Win10 VM at my fingertips. Do you have any advice or suggestions on how to tweak or configure the machine or the installation, preferably in such a way that gives me control over what the OS does? One interesting example is, can I configure the network to discard stuff sent to Microsoft servers with minimal disruption?