Even the bootable "live"version does it.
It is a two hour limit. Very noticeable, like a 2 second lag on the mouse.
To register, you must run a program in the install, that ties the registration to your unique hardware/id signature.
Pretty snappy before the two hour limit on 10 year old hardware. Works great on 1280x1024 display, not so much luck on the 1080p monitor here.