UWP Loopback: getting Microsoft Store apps onto the proxy

Apps from the Microsoft Store (and some system components) carry a special restriction: they may not connect to loopback addresses. Clash's proxy address is exactly that — 127.0.0.1 — so these apps either go offline or silently bypass the proxy even with System Proxy on.

Lifting the restriction

1. On the General page click UWP Loopback; Microsoft's EnableLoopback utility opens;
2. Tick the apps that should use the proxy;
3. Click Save Changes and restart those apps.

Typical candidates: the Store itself (faster downloads) and third-party clients installed from the Store.

Still not working?

A few UWP apps ignore the system proxy altogether even after the exemption. TUN mode is the catch-all: it intercepts at the network layer regardless of app type. Conversely, if you run TUN all the time anyway, you never need the loopback exemption.