I like to lock a LenovoTS140 tower and possibel a Dell XPS mini -tower. Unlike laptops where it it onbviosu how to attach lock I am not sure about my PC cases.
How is this generally done?
Dell almost always offers a lock loop or Kensington on the case. As to the Lenovo, IDK. (sorry, come to think of it, I cannot recall that Dell does that for the XPS line)