Need a VPN for use at school

I need a VPN for use at school. Before I used to use the built in Windows VPN for Remote Desktop connections to my home PC, connecting to network attached storage, and of course, browsing blocked websites. The admin has since caught on and blocked this service on the school computers. I need a VPN that I can easily configure and run on my Windows PC (with minimal performance decrease) and connect to from my school computer without admin privileges

You could run the Windows VPN client without admin privileges? Noramlly I would recommend setting up your own OpenVPN server, but the client needs admin permissions, because it needs to mess about with the syste’s networking settings to route traffic over the VPN.

What you might be able to do instead is get an SSH server running on your Windows machine (maybe on port 443 if you can’t use port 22), and use PuTTY to connect and to forward posts through the SSH tunnel to the computer at the other end. Unfortunately, you’ then be left connecting to things as localhost:weird-port, with various Windows built-in clients (like the Windows file sharing client) might not support.

They have the Windows VPN client blocked, presumably from the active directory