Manual registry changes require explicit policy reload

When system policies are configured manually by creating Windows Registry values (rather than via MDM or Group Policy), the Tailscale client does not automatically detect and apply the changes. The client only auto-applies when the OS notifies it of changes through MDM/Group Policy mechanisms.

After manually creating or modifying Registry values for Tailscale policies on Windows, run 'tailscale syspolicy reload' to force the client to reload and apply the changed settings. Note this command does not trigger Group Policy or MDM synchronization - it only reloads already-present policy values.