Same here - I just spent 1h trying to post this message (trying to load this page, try another browser, rebooting which also took 10mins etc.).
Unfortunately, I can't return to the previous build as this was a fresh install (and I didn't count on the CreationTool to bring me this 2004 build yet).
Running as expected now and this setup has done so for days - but it seems only a matter of time before it randomly hangs again.
Running on Asus P8Z68-V LE with Intel i5 2500K.